https://kbwiki.ercoftac.org/w/index.php?title=UFR_2-14_Evaluation&feed=atom&action=history UFR 2-14 Evaluation - Revision history 2024-03-29T11:40:06Z Revision history for this page on the wiki MediaWiki 1.39.2 https://kbwiki.ercoftac.org/w/index.php?title=UFR_2-14_Evaluation&diff=33295&oldid=prev Dave.Ellacott: Dave.Ellacott moved page SilverP:UFR 2-14 Evaluation to UFR 2-14 Evaluation 2017-02-12T12:14:08Z <p>Dave.Ellacott moved page <a href="/w/index.php/SilverP:UFR_2-14_Evaluation" class="mw-redirect" title="SilverP:UFR 2-14 Evaluation">SilverP:UFR 2-14 Evaluation</a> to <a href="/w/index.php/UFR_2-14_Evaluation" title="UFR 2-14 Evaluation">UFR 2-14 Evaluation</a></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <tr class="diff-title" lang="en"> <td colspan="1" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="1" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 12:14, 12 February 2017</td> </tr><tr><td colspan="2" class="diff-notice" lang="en"><div class="mw-diff-empty">(No difference)</div> </td></tr></table> Dave.Ellacott https://kbwiki.ercoftac.org/w/index.php?title=UFR_2-14_Evaluation&diff=29033&oldid=prev Dave.Ellacott: moved Lib:UFR 2-14 Evaluation to SilverP:UFR 2-14 Evaluation 2014-06-10T10:30:20Z <p>moved <a href="/w/index.php/Lib:UFR_2-14_Evaluation" class="mw-redirect" title="Lib:UFR 2-14 Evaluation">Lib:UFR 2-14 Evaluation</a> to <a href="/w/index.php/SilverP:UFR_2-14_Evaluation" class="mw-redirect" title="SilverP:UFR 2-14 Evaluation">SilverP:UFR 2-14 Evaluation</a></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <tr class="diff-title" lang="en"> <td colspan="1" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="1" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 10:30, 10 June 2014</td> </tr><tr><td colspan="2" class="diff-notice" lang="en"><div class="mw-diff-empty">(No difference)</div> </td></tr></table> Dave.Ellacott https://kbwiki.ercoftac.org/w/index.php?title=UFR_2-14_Evaluation&diff=29002&oldid=prev Wolfgang.Rodi: /* Sensitivity study */ 2014-05-28T10:51:56Z <p><span dir="auto"><span class="autocomment">Sensitivity study</span></span></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 10:51, 28 May 2014</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l217">Line 217:</td> <td colspan="2" class="diff-lineno">Line 217:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>However, for a simulation modeling aspects are of course significant and have to be taken into account in the sensitivity study.</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>However, for a simulation<ins style="font-weight: bold; text-decoration: none;">, </ins>modeling aspects are of course significant and have to be taken into account in the sensitivity study.</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The present test case is within the turbulent regime. Hence, turbulence plays an important role. The modeled part of the LES method is based on the subgrid-scale (SGS) model. For the parameter of the chosen model, there is a range of possible values: For example for the Smagorinsky model parameters in the range &lt;math&gt;C_s \in [0.065,</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The present test case is within the turbulent regime. Hence, turbulence plays an important role. The modeled part of the LES method is based on the subgrid-scale (SGS) model. For the parameter of the chosen model, there is a range of possible values: For example for the Smagorinsky model parameters in the range &lt;math&gt;C_s \in [0.065,</div></td></tr> </table> Wolfgang.Rodi https://kbwiki.ercoftac.org/w/index.php?title=UFR_2-14_Evaluation&diff=28987&oldid=prev Rapp.munchen: /* Fluid-structure interaction in turbulent flow past cylinder/plate configuration II */ 2014-05-26T15:23:23Z <p><span dir="auto"><span class="autocomment">Fluid-structure interaction in turbulent flow past cylinder/plate configuration II</span></span></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 15:23, 26 May 2014</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1">Line 1:</td> <td colspan="2" class="diff-lineno">Line 1:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>= Fluid-structure interaction in turbulent flow past cylinder/plate configuration II =</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>= Fluid-structure interaction in turbulent flow past cylinder/plate configuration II <ins style="font-weight: bold; text-decoration: none;">(Second swiveling mode)</ins>=</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>{{UFRHeader</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>{{UFRHeader</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|area=2</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|area=2</div></td></tr> </table> Rapp.munchen https://kbwiki.ercoftac.org/w/index.php?title=UFR_2-14_Evaluation&diff=28975&oldid=prev Rapp.munchen: /* Conclusions */ 2014-05-26T14:33:51Z <p><span dir="auto"><span class="autocomment">Conclusions</span></span></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 14:33, 26 May 2014</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l279">Line 279:</td> <td colspan="2" class="diff-lineno">Line 279:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>To better comprehend the current test case a sensitivity study</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>To better comprehend the current test case a sensitivity study</div></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>including physical and numerical parameters <del style="font-weight: bold; text-decoration: none;">is </del>carried out leading to</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>including physical and numerical parameters <ins style="font-weight: bold; text-decoration: none;">was </ins>carried out leading to</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>the following conclusions:</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>the following conclusions:</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>* Young's modulus &lt;math&gt;E_{\text{rubber}}&lt;/math&gt; has the major influence on the FSI phenomenon for the geometry used in FSI-PfS-2a. Compared to the value provided by Kalmbach and Breuer (2013) based on a static structural test, Young's modulus was determined <del style="font-weight: bold; text-decoration: none;">anew </del>based on a more reasonable dynamic structural test. [http://qnet-ercoftac.cfms.org.uk/w/index.php/UFR_2-13_Evaluation#Sensitivity_study_for_the_subset_case_-_Dimensional_analysis Another parameter study] (De Nayer et al., 2014) conducted with the geometry of the test case [http://qnet-ercoftac.cfms.org.uk/w/index.php/UFR_2-13 FSI-PfS-1a] (similar geometry but other material parameters and no rear mass) has led to the same conclusion.</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>* Young's modulus &lt;math&gt;E_{\text{rubber}}&lt;/math&gt; has the major influence on the FSI phenomenon for the geometry used in FSI-PfS-2a. Compared to the value provided by Kalmbach and Breuer (2013) based on a static structural test, Young's modulus was <ins style="font-weight: bold; text-decoration: none;">newly </ins>determined based on a more reasonable dynamic structural test. [http://qnet-ercoftac.cfms.org.uk/w/index.php/UFR_2-13_Evaluation#Sensitivity_study_for_the_subset_case_-_Dimensional_analysis Another parameter study] (De Nayer et al., 2014) conducted with the geometry of the test case [http://qnet-ercoftac.cfms.org.uk/w/index.php/UFR_2-13 FSI-PfS-1a] (similar geometry but other material parameters and no rear mass) has led to the same conclusion.</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>* Furthermore, in FSI-PfS-2a the structural damping has a minor effect and can <del style="font-weight: bold; text-decoration: none;">also </del>be omitted. This outcome is exactly the contrary to the one found with [http://qnet-ercoftac.cfms.org.uk/w/index.php/UFR_2-13_Evaluation#Structure_results FSI-PfS-1a]. This observation can be explained by the fact that FSI-PfS-1a is an instability-induced excitation and thus more sensitive to structural damping. FSI-PfS-2a, however, is a movement-induced excitation. Here, the damping generated by the viscous fluid exceeds the structural damping by orders of magnitude.</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>* Furthermore, in FSI-PfS-2a the structural damping has a minor effect and can be omitted. This outcome is exactly the contrary to the one found with [http://qnet-ercoftac.cfms.org.uk/w/index.php/UFR_2-13_Evaluation#Structure_results FSI-PfS-1a]. This observation can be explained by the fact that FSI-PfS-1a is an instability-induced excitation and thus more sensitive to structural damping. FSI-PfS-2a, however, is a movement-induced excitation. Here, the damping generated by the viscous fluid exceeds the structural damping by orders of magnitude.</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>* The sensitivity study also permits to verify that the SGS model and its parameter does not strongly affect the simulation. Indeed, the Smagorinsky model, the dynamic model of Germano and the WALE model <del style="font-weight: bold; text-decoration: none;">deliver </del>similar results for the test case FSI-PfS-2a. This is due to the moderate Reynolds number and the fine grid applied<del style="font-weight: bold; text-decoration: none;">.</del></div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>* The sensitivity study also permits to verify that the SGS model and its parameter does not strongly affect the simulation. Indeed, the Smagorinsky model, the dynamic model of Germano and the WALE model <ins style="font-weight: bold; text-decoration: none;">yield </ins>similar results for the test case FSI-PfS-2a. This is due to the moderate Reynolds number and the fine grid applied.</div></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> </div></td><td colspan="2" class="diff-side-added"></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">The presented test case FSI-PfS-2a is a part of a series (see [http://qnet-ercoftac.cfms.org.uk/w/index.php/UFR_2-13 UFR_2-13] and [http://qnet-ercoftac.cfms.org.uk/w/index.php/UFR_2-14 UFR_2-14]) of reference test cases designed to</del></div></td><td colspan="2" class="diff-side-added"></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">validate and improve numerical FSI codes</del>.</div></td><td colspan="2" class="diff-side-added"></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>= Data files =</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>= Data files =</div></td></tr> </table> Rapp.munchen https://kbwiki.ercoftac.org/w/index.php?title=UFR_2-14_Evaluation&diff=28974&oldid=prev Rapp.munchen: /* Sensitivity study */ 2014-05-26T14:31:41Z <p><span dir="auto"><span class="autocomment">Sensitivity study</span></span></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 14:31, 26 May 2014</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l248">Line 248:</td> <td colspan="2" class="diff-lineno">Line 248:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>In summary, the present parameter study shows that Young's modulus &lt;math&gt;E_{\text{rubber}}&lt;/math&gt; (or the dimensionless Cauchy number &lt;math&gt;\text{Cy}_{\text{rubber}}&lt;/math&gt;) has the <del style="font-weight: bold; text-decoration: none;">major </del>influence on the FSI phenomenon for the setup used in FSI-PfS-2a. The structural damping has a minor effect and can <del style="font-weight: bold; text-decoration: none;">mainly </del>be neglected. The choice of the SGS model and parameter does not play an important role for FSI-PfS-2a. The classical Smagorinsky model with a standard parameter set to &lt;math&gt;C_s = 0.1&lt;/math&gt; can be used.</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>In summary, the present parameter study shows that Young's modulus &lt;math&gt;E_{\text{rubber}}&lt;/math&gt; (or the dimensionless Cauchy number &lt;math&gt;\text{Cy}_{\text{rubber}}&lt;/math&gt;) has the <ins style="font-weight: bold; text-decoration: none;">largest </ins>influence on the FSI phenomenon for the setup used in FSI-PfS-2a. The structural damping has a minor effect and can be neglected. The choice of the SGS model and parameter does not play an important role for FSI-PfS-2a. The classical Smagorinsky model with a standard parameter set to &lt;math&gt;C_s = 0.1&lt;/math&gt; can be used.</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== Conclusions  ==</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== Conclusions  ==</div></td></tr> </table> Rapp.munchen https://kbwiki.ercoftac.org/w/index.php?title=UFR_2-14_Evaluation&diff=28973&oldid=prev Rapp.munchen: /* Sensitivity study */ 2014-05-26T14:30:21Z <p><span dir="auto"><span class="autocomment">Sensitivity study</span></span></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 14:30, 26 May 2014</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l226">Line 226:</td> <td colspan="2" class="diff-lineno">Line 226:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>All tests are summarized in the Table 1. The experimental results are also added as the reference. Each simulation was done for a time interval of 2 s physical time and comprises about 15 swiveling periods without the initial starting phase. Relative errors between the numerical and experimental values are given.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>All tests are summarized in the Table 1. The experimental results are also added as the reference. Each simulation was done for a time interval of 2 s physical time and comprises about 15 swiveling periods without the initial starting phase. Relative errors between the numerical and experimental values are given.</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Table 1: Parameter study and corresponding results. Bold values define the numerical reference case used for comparison with the experiment. The errors are defined according to the deviations to the measurements.  </div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">'''</ins>Table 1: Parameter study and corresponding results. Bold values define the numerical reference case used for comparison with the experiment. The errors are defined according to the deviations to the measurements.<ins style="font-weight: bold; text-decoration: none;">''' </ins></div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Image:qnet_FSI-PfS-2_sensitivity_study.png|x500px]]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Image:qnet_FSI-PfS-2_sensitivity_study.png|x500px]]</div></td></tr> </table> Rapp.munchen https://kbwiki.ercoftac.org/w/index.php?title=UFR_2-14_Evaluation&diff=28972&oldid=prev Rapp.munchen: /* Sensitivity study */ 2014-05-26T14:30:00Z <p><span dir="auto"><span class="autocomment">Sensitivity study</span></span></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 14:30, 26 May 2014</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l224">Line 224:</td> <td colspan="2" class="diff-lineno">Line 224:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>As already explained, the modeling of the material has a strong influence on the coupled simulation. For rubber it is usual to expect a certain level of damping. This effect is modeled by a Rayleigh damping. The damping factor proportional to the stiffness is approximated to a value of &lt;math&gt;\beta = 0.006&lt;/math&gt;, whereas the quantity proportional to the mass &lt;math&gt;\alpha&lt;/math&gt; is assumed to be zero (De Nayer and Breuer, 2014). Thus, a simulation with Rayleigh damping is also carried out and completes the sensitivity study.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>As already explained, the modeling of the material has a strong influence on the coupled simulation. For rubber it is usual to expect a certain level of damping. This effect is modeled by a Rayleigh damping. The damping factor proportional to the stiffness is approximated to a value of &lt;math&gt;\beta = 0.006&lt;/math&gt;, whereas the quantity proportional to the mass &lt;math&gt;\alpha&lt;/math&gt; is assumed to be zero (De Nayer and Breuer, 2014). Thus, a simulation with Rayleigh damping is also carried out and completes the sensitivity study.</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>All tests are summarized in the <del style="font-weight: bold; text-decoration: none;">table below</del>. The experimental results are also added as the reference. Each simulation was done for a time interval of 2 s physical time and comprises about 15 swiveling periods without the initial starting phase. Relative errors between the numerical and experimental values are given.</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>All tests are summarized in the <ins style="font-weight: bold; text-decoration: none;">Table 1</ins>. The experimental results are also added as the reference. Each simulation was done for a time interval of 2 s physical time and comprises about 15 swiveling periods without the initial starting phase. Relative errors between the numerical and experimental values are given.</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Table 1: Parameter study and corresponding results. Bold values define the numerical reference</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Table 1: Parameter study and corresponding results. Bold values define the numerical reference case used for comparison with the experiment. The errors are defined according to the deviations to the measurements.  </div></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">        </del>case used for comparison with the experiment. The errors are defined according to the deviations to the measurements.  </div></td><td colspan="2" class="diff-side-added"></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Image:qnet_FSI-PfS-2_sensitivity_study.png|x500px]]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Image:qnet_FSI-PfS-2_sensitivity_study.png|x500px]]</div></td></tr> </table> Rapp.munchen https://kbwiki.ercoftac.org/w/index.php?title=UFR_2-14_Evaluation&diff=28971&oldid=prev Rapp.munchen: /* Sensitivity study */ 2014-05-26T14:29:13Z <p><span dir="auto"><span class="autocomment">Sensitivity study</span></span></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 14:29, 26 May 2014</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l225">Line 225:</td> <td colspan="2" class="diff-lineno">Line 225:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>All tests are summarized in the table below. The experimental results are also added as the reference. Each simulation was done for a time interval of 2 s physical time and comprises about 15 swiveling periods without the initial starting phase. Relative errors between the numerical and experimental values are given.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>All tests are summarized in the table below. The experimental results are also added as the reference. Each simulation was done for a time interval of 2 s physical time and comprises about 15 swiveling periods without the initial starting phase. Relative errors between the numerical and experimental values are given.</div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">Table 1: Parameter study and corresponding results. Bold values define the numerical reference</ins></div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">        case used for comparison with the experiment. The errors are defined according to the deviations to the measurements. </ins></div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Image:qnet_FSI-PfS-2_sensitivity_study.png|x500px]]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Image:qnet_FSI-PfS-2_sensitivity_study.png|x500px]]</div></td></tr> </table> Rapp.munchen https://kbwiki.ercoftac.org/w/index.php?title=UFR_2-14_Evaluation&diff=28970&oldid=prev Rapp.munchen: /* Sensitivity study */ 2014-05-26T14:19:31Z <p><span dir="auto"><span class="autocomment">Sensitivity study</span></span></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 14:19, 26 May 2014</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l217">Line 217:</td> <td colspan="2" class="diff-lineno">Line 217:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>However, <del style="font-weight: bold; text-decoration: none;">since it is </del>a simulation<del style="font-weight: bold; text-decoration: none;">, </del>modeling aspects are of course significant and have to be taken into account in the sensitivity study.</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>However, <ins style="font-weight: bold; text-decoration: none;">for </ins>a simulation modeling aspects are of course significant and have to be taken into account in the sensitivity study.</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>The present test case is within the turbulent regime. Hence, turbulence plays an important role. The modeled part of the LES method is based on the subgrid-scale (SGS) model. <del style="font-weight: bold; text-decoration: none;">The </del>parameter of the chosen model <del style="font-weight: bold; text-decoration: none;">has to be set in </del>a range of values: For example for the Smagorinsky model <del style="font-weight: bold; text-decoration: none;">reasonable </del>parameters in the range &lt;math&gt;C_s \in [0.065,</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>The present test case is within the turbulent regime. Hence, turbulence plays an important role. The modeled part of the LES method is based on the subgrid-scale (SGS) model. <ins style="font-weight: bold; text-decoration: none;">For the </ins>parameter of the chosen model<ins style="font-weight: bold; text-decoration: none;">, there is </ins>a range of <ins style="font-weight: bold; text-decoration: none;">possible </ins>values: For example for the Smagorinsky model parameters in the range &lt;math&gt;C_s \in [0.065,</div></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>   0.2]&lt;/math&gt; are found in the literature. <del style="font-weight: bold; text-decoration: none;">Consequently</del>, simulations with different SGS models and different parameter values <del style="font-weight: bold; text-decoration: none;">are </del>carried out. Three simulations using the Smagorinsky model are presented: the Smagorinsky constant is adjusted to test the whole range (&lt;math&gt;C_s=0.065,\  0.1 \text{ and } 0.18&lt;/math&gt;). Furthermore, a simulation with the dynamic procedure of Germano et al. (1991) still relying on the Smagorinsky model is carried out. Finally, the WALE model is tested with a &lt;math&gt;C_W= 0.33&lt;/math&gt;, corresponding to a Smagorinsky constant of &lt;math&gt;C_s = 0.1&lt;/math&gt;.</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>   0.2]&lt;/math&gt; are found in the literature. <ins style="font-weight: bold; text-decoration: none;">Therefore</ins>, simulations with different SGS models and different parameter values <ins style="font-weight: bold; text-decoration: none;">were </ins>carried out. Three simulations using the Smagorinsky model are presented: the Smagorinsky constant is adjusted to test the whole range (&lt;math&gt;C_s=0.065,\  0.1 \text{ and } 0.18&lt;/math&gt;). Furthermore, a simulation with the dynamic procedure of Germano et al. (1991) still relying on the Smagorinsky model is carried out. Finally, the WALE model is tested with a &lt;math&gt;C_W= 0.33&lt;/math&gt;, corresponding to a Smagorinsky constant of &lt;math&gt;C_s = 0.1&lt;/math&gt;.</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>As already explained, the modeling of the material has a strong influence on the coupled simulation. For rubber it is usual to expect a certain level of damping. This effect is modeled by a Rayleigh damping. The damping factor proportional to the stiffness is approximated to a value of &lt;math&gt;\beta = 0.006&lt;/math&gt;, whereas the quantity proportional to the mass &lt;math&gt;\alpha&lt;/math&gt; is assumed to be zero (De Nayer and Breuer, 2014). Thus, a simulation with Rayleigh damping is also carried out and completes the sensitivity study.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>As already explained, the modeling of the material has a strong influence on the coupled simulation. For rubber it is usual to expect a certain level of damping. This effect is modeled by a Rayleigh damping. The damping factor proportional to the stiffness is approximated to a value of &lt;math&gt;\beta = 0.006&lt;/math&gt;, whereas the quantity proportional to the mass &lt;math&gt;\alpha&lt;/math&gt; is assumed to be zero (De Nayer and Breuer, 2014). Thus, a simulation with Rayleigh damping is also carried out and completes the sensitivity study.</div></td></tr> </table> Rapp.munchen