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- 3 KB (468 words) - 12:59, 13 March 2023
- #REDIRECT [[Category:QNET-CFD Main]]36 bytes (4 words) - 19:48, 29 August 2009
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- #REDIRECT [[Category:QNET-CFD Main]]36 bytes (4 words) - 19:48, 29 August 2009
- ...France in Chatou, France. A high Reynolds number flow is maintained in the main pipe while very small incoming mass flow rates are imposed in the auxiliary ...l power in the dead leg is directly affected by the Reynolds number in the main pipe and by geometric details of the junction, whereas the influence of the5 KB (768 words) - 16:00, 11 February 2017
- The CFD results have been used to calculate the pressure drops between the main branch (leg 1) and each of the two secondary branches (legs 2 and 3) for ea Figure 8 – Coarse mesh at main branch inlet3 KB (370 words) - 16:12, 11 February 2017
- ...ction. In addition, the CFD simulation predicts a greater spreading of the main element wake at this location than indicated by the experiment. ...d that the CFD code tends to under predict the mixing between the slat and main element wakes.3 KB (528 words) - 15:08, 11 February 2017
- **[[QNET-CFD-Main|Main Category]]3 KB (317 words) - 10:56, 17 October 2019
- ...l power in the dead leg is directly affected by the Reynolds number in the main pipe and by geometric details of the junction, whereas the influence of the A high Reynolds number developed turbulent flow is maintained in the main pipe while very small incoming mass flow rates are imposed in the auxiliary6 KB (983 words) - 16:02, 11 February 2017
- is characterized by the main vortex developing above the wing. The vortex is ...er downstream. This is necessary to capture the initial development of the main vortex and the turbulence within the vortex.4 KB (620 words) - 15:20, 11 February 2017
- for you, named "extract_data", that you will also find in the main directory.2 KB (342 words) - 11:28, 11 April 2010
- ...both the bluff-body jet flames discussed here consist, generally, of three main zones: stabilisation, extinction and reignition zones. ...diameters are 3.6 mm for the fuel nozzle and 50mm for the bluff-body. The main fuel jet composition is 50% CH4 and 50% H2 for a bulk Jet velocity of 118,7 KB (1,076 words) - 15:26, 11 February 2017
- ...element (deflection angle <math>25^0</math>), and a Fowler flap aft of the main element (deflection angle <math>20^0</math>). See Figure 1. Measurements we ...ure of the L1T2 profile. It consists of a main element, slat and flap. The main element comprises a BAC 3-11/RES/30/21 section and the overall chord of the7 KB (1,061 words) - 15:07, 11 February 2017
- the main vortex (and some also a smaller peak due to secondary separation), whereas the experiment shows a plateau. In the computations, the main vortex11 KB (1,855 words) - 15:19, 11 February 2017
- ...e there is also a second bubble at the top wall. In the turbulent case the main recirculation zone is smaller and a secondary bubble appears inside this re The main features to be compared in this test case are the general pattern of the st6 KB (979 words) - 13:28, 12 February 2017
- **[[KB-Wiki-Main|Main Category]]4 KB (534 words) - 10:51, 17 January 2021
- ...by the interaction of the pressure gradient linked to the curvature of the main flow with the non-uniform flow. The flow, moving slower in the boundary lay ...of 29 simulations performed on the DLR turbine stator and coming from two main studies.3 KB (519 words) - 14:10, 12 February 2017
- * With the large eddy simulations, two main discrepancies have been found in the comparison of results with experiments ...and Kavsaoglu was based on a Reynolds number of 51400 with respect to the main stream velocity and the jet pipe diameter. This Reynolds number may be equi3 KB (528 words) - 19:07, 11 February 2017
- A no-slip and adiabatic boundary condition was applied on the slat, main-element and flap solid surfaces. The simulation was performed in “free-ai ...set the turbulent viscosity to zero ahead of the transition points on the main element as well as turning off the source terms in the turbulent kinetic en9 KB (1,353 words) - 16:48, 14 February 2017
- ...the unsteady flow phenomena, which appears behind the turbine blades. The main characteristic of the proposed UFR is the vortex shedding, which is generat According to Sieverding et al. (2002) the main characteristics of such flows are:7 KB (996 words) - 19:29, 11 February 2017
- ...V1) (Baker 1980). The saddle point S1 devides the fluid entrained into the main vortex from the one contributing to the near-wall jet.5 KB (797 words) - 15:50, 4 November 2020
- ...n capturing main flow features, such as the small separation region in the main branch at peak systole and the recirculation in the aneurysm and the back f ...ts associated recirculation at the junction between the collateral and the main descending duct (cf. Fig. 13) could explained this overestimation due to ve8 KB (1,269 words) - 18:14, 16 February 2022
- ...pipe lengths to minimize the size of the numerical model. The inlet of the main pipe has been placed relatively near from the junction to reduce the size o ...pipe), Dirichlet conditions are used for all transported variables. In the main pipe, the incoming flow is supposed to be fully developed. Hence, the mean10 KB (1,338 words) - 16:01, 11 February 2017
- main units including the drop generator, the impact substrate and the2 KB (268 words) - 10:01, 17 August 2023
- ...atomizer main axis was 150 mm away from the section inlet and crossed the main section axis. Positioning of the atomizer relative to the section (7) is sh ...der with a diameter of 45 mm and 27 mm long with its axis identical to the main atomizer axis, see '''[https://kbwiki.ercoftac.org/w/index.php/EXP_1-1_Meas11 KB (1,707 words) - 08:23, 17 August 2023
- ...ogether the expertise of 43 participating organisations across Europe. The main objective of the Network was to improve the level of trust that can be plac2 KB (313 words) - 01:41, 14 March 2017
- ...rynx and the upper trachea were imaged by plane V, and plane VI covers the main bifurcation and bronchi. ...>2^o</math> from the exact vertical orientation), trachea (V-xy plane) and main bifurcation and bronchi (VI-yz plane).]]7 KB (1,045 words) - 14:33, 27 October 2022
- ...lly, a protuberance was attached at the intersection of the collateral and main branch to mimic blood flow patterns in an aortic aneurysm (Fig. 2). Typical ...ath> is the averaged inlet velocity and <math>D</math> the diameter of the main duct. At peak systole (highest inlet velocity), a maximum <math>Re = 1915</6 KB (901 words) - 18:13, 16 February 2022
- ...ed. The Mach number distribution right in front of the leading edge of the main blade (plane -1) is presented in Fig. 4.1, the Mach number distribution at ...al computational domain is limited to a single rotating passage (including main blade and splitter blade flow), because the geometrical simplifications and11 KB (1,595 words) - 18:39, 11 February 2017
- ...locate the junction at least 1000 mm downstream of the nearest bend of the main pipe (no precise measurements have been made to assess the development of t ! || Inlet Re ||width="100"| Main Pipe Bulk Velocity (m/s) ||width="100"|Auxiliary Pipe Bulk Velocity (m/s) |4 KB (665 words) - 16:01, 11 February 2017
- === Main Assessment Quantities === Considering the experimental data available the main assessment quantities are time histories (hysteresis) of Cl(t) — lift8 KB (1,146 words) - 19:35, 11 February 2017
- At planes VI (main bifurcation and bronchi, see [[Test Data AC7-02#Figure6|figure 6]](b)), the At planes VI (main bifurcation and bronchi, see [[Test Data AC7-02#Figure6|figure 6]](b)), the5 KB (805 words) - 14:35, 27 October 2022
- ...and the bluff-body jet flames discussed here consist, generally, of three main zones: stabilization, extinction and reignition zones. The computation of t ...ownstream towards the outlet section. Beside the downstream motion of this main recirculation vortex, a new one starts to develop at the bluff-body wall re14 KB (2,135 words) - 15:27, 11 February 2017
- ...dation of numerical methodologies. This flow has been considered, with the main objective of assessment of turbulence models, during the E.C. funded projec2 KB (329 words) - 12:59, 12 February 2017
- could also capture most of the main features of the complex flow, including the vortex One of the main uncertainties is the oncoming boundary layer developing on the ground plate5 KB (815 words) - 11:40, 12 February 2017
- (i) a main hydraulic circuit, marked blue; (iv) a main pump that is able to provide a maximum flow rate of 40 l/s;7 KB (1,116 words) - 18:48, 11 February 2017
- Transition was set on the main element lower and upper surfaces at 12.5% retracted chord. • Surface pressure coefficients on the slat, main-element and flap6 KB (882 words) - 15:07, 11 February 2017
- Three main flow patterns are potential sources of losses in turbomachinery. These are: ...by the interaction of the pressure gradient linked to the curvature of the main flow with the non-uniform flow (for instance due to boundary layers on soli5 KB (818 words) - 14:09, 12 February 2017
- ...d tunnel NWG in Göttingen. The model shape is defined analytically and the main dimensions are the following: ...eroid has been simulated during the E.C. funded project ECARP [8] with the main purpose of validation of the turbulence models. The flow conditions chosen18 KB (2,503 words) - 12:58, 12 February 2017
- The flow domain geometry is shown in [[#Fig. 1|Fig. 1]]. Only the main river channel with groynes is included but not the flood plains which remai ...ure was 14°C. At the discharge considered the flow is contained in the main river channel and the groynes are only slightly submerged so that there are5 KB (838 words) - 16:38, 11 February 2017
- Margason (1993) gives a list of the main applications of knowledge about jets in cross flow: ...he case of R=0.5. The jet bends immediately after leaving the orifice. The main flow is slightly distorted by the jet and, downstream the orifice, it looks12 KB (1,947 words) - 19:07, 11 February 2017
- ...ar in plan, with an aerofoil-shaped roof. It is located near to one of the main runways of the airport. The surrounding area is relatively open, with a few ...be evaluated. This is an unusual requirement for building design, and the main parameters that were assessed were the velocity defect and turbulence enhan8 KB (1,166 words) - 16:34, 11 February 2017
- Schematic view on the main and pilot burners located 15 cm above the |Main jet inner diameter, ''d''||=||7.2 mm13 KB (2,002 words) - 15:41, 11 February 2017
- For pictures of the main terminal model building see The external geometry of the main and surrounding buildings is however well-defined and is supplied in detail12 KB (1,971 words) - 16:35, 11 February 2017
- ...ether satisfactory results could be achieved in these calculations and the main assessment parameters could be reproduced fairly well. It should be remembe3 KB (421 words) - 16:39, 11 February 2017
- the main part like the vortex shedding flow past long cylinders. At small aspect rat carried out, covering a fairly wide range of the main parameters ''Re'', ''h/D'' and ''δ/h'' and of6 KB (995 words) - 11:39, 12 February 2017
- ...openings of a street canyon by means of turbulence and advection, with the main influencing variables being the roof height along the street canyon walls a3 KB (509 words) - 10:20, 4 August 2023
- The computations by Andersson et al. (1993) gave the following main results: besides the shortcomings following from the use of wall functions3 KB (456 words) - 13:06, 12 February 2017
- The main flow physics associated with this application challenge are strong interact ...ence to suggest that, at high lift, transition on the upper surface of the main element is forward of the applied transition fix.7 KB (1,144 words) - 15:09, 11 February 2017
- To capture the main flow features, a two-dimensional axi-symmetric computation can be undertake3 KB (398 words) - 14:18, 12 February 2017
- and here only the main findings are reproduced. for both cases. The main features are again predicted quite well, at least qualitatively (for13 KB (2,010 words) - 11:40, 12 February 2017
- ...flow is the development of the wake and its interaction (mixing) with the main flow. |+ '''Table 1.''' Main features of the test cascade.10 KB (1,535 words) - 19:38, 11 February 2017
- and only the main elements of those presented is rather limited, partly because the main emphasis was on assessing7 KB (1,064 words) - 13:41, 12 February 2017
- The main intention of performing CFD calculations was to find the global flow field Table 3-I, partially taken from Eisenlohr et al. [2], summarizes the main features of each code.33 KB (4,394 words) - 18:38, 11 February 2017
- The main issue for the accurate prediction of this case is the selection of the turb4 KB (545 words) - 12:31, 12 February 2017
- The URANS models are capable of capturing the main unsteady feature of this flow, the main flow features in the adverse pressure gradient region in the draft tube.14 KB (2,146 words) - 18:48, 11 February 2017
- is at the beginning of the flat floor and hence within the main main separation region in the reattached flow. At both Re the22 KB (3,419 words) - 13:37, 12 February 2017
- ...>nd</sup> order discretization scheme is desirable, it was found, that the main flow features ([[DOAP]]s) were already well captured with a slightly less a While the grid is fine enough to capture most of the main flow features it is still too coarse to resolve the shock giving a smeared11 KB (1,761 words) - 18:39, 11 February 2017
- The main flow bulk parameters obtained in the different wind tunnel and numerical st ===Main flow features and statistics===44 KB (6,548 words) - 12:17, 12 February 2017
- ...ions of a single contribution, in which it is shown that the length of the main recirculation zone The main sources of uncertainties in experiments are the model quality and, in parti9 KB (1,342 words) - 12:18, 12 February 2017
- ...ch flows is dependent on reliable data of generic test cases including the main features of the respective flow phenomena. ...a strong impact on the point of reattachment. The length and height of the main recirculation bubble varies with the Reynolds number. Furthermore, a tiny r16 KB (2,455 words) - 13:36, 12 February 2017
- ...-affected annulus flows have been reported by Guy et al (1999). One of the main objectives of this study was to establish whether buoyancy might cause the In this case, Model 1 is applied in the main flow region. However a considerably coarser near-wall grid is employed, wit16 KB (2,379 words) - 16:15, 11 February 2017
- ...kinetic energy and the streamwise and radial normal stress components. The main findings of Hassan and McGuirk with respect to pressure and skin friction c4 KB (597 words) - 12:47, 12 February 2017
- ...flow are naturally lower than corresponding values for turbulent flow. The main source of energy losses in the transonic regime is the existence of shock w4 KB (680 words) - 19:45, 11 February 2017
- ...nsists of two stainless steel tube sections carefully welded together. The main upper part is 6.571m long with inside diameter 76.12mm and wall thickness 1 ...ers (50000-100000) the number of nodes in the radial direction, within the main flow, was increased to 15. Results were pretty much the same as with 10-119 KB (1,303 words) - 12:55, 12 February 2017
- delta wing with a sharp leading edge at high angle of attack. The main modelling the suction due to the main vortex above the wing. When the vortex breaks down,8 KB (1,290 words) - 15:15, 11 February 2017
- ...ng tip-clearance effects through numerical flow models exist nowadays, the main purpose of the experimental facility described herein was to provide data f ...near the tip gap exit due to the difference in flow direction between the main flow and the leakage jet, resulting in the formation of a discrete leakage16 KB (2,475 words) - 10:42, 3 May 2018
- have been employed. The main difference between SST-DES and X-LES is that of the wing: the grid covering the main vortex is essentially isotropic at each21 KB (3,297 words) - 15:19, 11 February 2017
- ...r flow in the empty tunnel formed the basis for 2D and 3D calculations for main terminal building, using a simplified representation of its geometry and om ...the terminal building and their heights are relatively low compared to the main building (~0.3H), it anticipated that the overall shape and dimensions of t16 KB (2,550 words) - 16:35, 11 February 2017
- ...15#figure5|Fig. 5]]. Interestingly, the LES on a 6M grid produced the main flow features - the pressure pulsations, velocity profiles and the ''rms'' ...overestimation of the wall shear stress, does not seem to affect much the main flow and vortex structures in the bulk of the draft tube. The ANSYS-FLUENT15 KB (2,445 words) - 11:36, 12 March 2019
- ...de some key comparisons between computed and measured flow quantities. The main quantity used to judge the competency of the CFD simulations is the chord-w4 KB (602 words) - 19:39, 11 February 2017
- The main concern with this flow is the correct prediction of the flow reversal near ...SL) accounts for the transport of the turbulent shear-stress, which is the main driving force in the momentum exchange. It was demonstrated by Johnson and14 KB (2,108 words) - 12:30, 12 February 2017
- ...predict the separation observed in the experiment. It therefore misses the main characteristics of this flow. The SST model avoids this deficiency and give ...uable data-set for turbulence model development and validation. One of its main advantages is that the flow geometry is axisymmetric, avoiding the influenc10 KB (1,562 words) - 12:30, 12 February 2017
- The main Design and Assessment Parameters ([[DOAP]]s) for this AC are the pressure r The main application uncertainty for the AC is missing or incomplete boundary condit17 KB (2,482 words) - 10:02, 3 May 2018
- ...the shock-wave region and near the leading edge and the trailing edge. The main source of energy losses in the transonic regime is the existence of shock w5 KB (719 words) - 19:46, 11 February 2017
- ...the summit for the SMC, does not influence the downstream development. The main difference between models is in the re-circulation bubble, which is much mo5 KB (764 words) - 13:18, 12 February 2017
- ...lts sections for [[CFD_Simulations_AC4-01#Simulation Case CFD2|CFD2]]. The main conclusions emerging from the results of these simulations are summarized b5 KB (819 words) - 16:35, 11 February 2017
- ...l research project of German and Swiss turbo-compressor manufacturers. The main focus of this work, as outlined in Eisenlohr et al. [2], was to measure and ...s primarily the correct prediction of the flow field that is required as a main application of CFD. The accurate calculation of the flow field, with the pr21 KB (3,025 words) - 18:37, 11 February 2017
- ...ength, ascending from the south to north portals with a slope of 3.2%. The main tunnel section is rectangular, surmounted by a semi-circular ceiling. The w4 KB (630 words) - 16:44, 11 February 2017
- ...or steady-flight conditions. The airflow is forced perpendicularly to the main spraying axis, which is considered a cross-flow case. The flow is homogeneo == Main characteristics of the flow and spray ==30 KB (4,645 words) - 08:20, 17 August 2023
- In addition to the main setup described above, sensitivity studies are strongly encouraged. ...g flow characteristics in accordance with the range prescribed by the BARC main setup34 KB (4,934 words) - 12:17, 12 February 2017
- ...multiple set of tangential inlets. The inflowing fluid rotates within the main body of the chamber and is constrained to follow a spiral flow path. Any pa6 KB (834 words) - 16:04, 11 February 2017
- ...e is of interest, therefore the chosen model should be able to capture the main physical features of the flow field.6 KB (989 words) - 13:15, 12 February 2017
- ...p; Versteeg, 1996). The turbulence model equations were decoupled form the main flow calculation and solved sequentially. The models are incorporated into5 KB (800 words) - 13:14, 12 February 2017
- ...issipation rates of turbulence over the wall-adjacent control volumes. The main drawback of such strategies, at least until recently, has been the assumpti ...ld an acceptable boundary layer profile by the time the jet exits into the main cavity at the bottom of the splitter plate and where the channel flow reach19 KB (2,931 words) - 15:48, 11 February 2017
- ...practical point of view, namely the temperature in the occupied space. The main uncertainties seem to be in specifying boundary conditions on the thermodyn7 KB (994 words) - 16:42, 11 February 2017
- Here only a brief summary of the main issues6 KB (893 words) - 16:19, 11 February 2017
- The swirling flow apparatus is installed with two main parts, the swirl generator and6 KB (918 words) - 18:48, 11 February 2017
- The data bank consists of data for two main cases. The first case is on-cam i.e. the top-point (T) on the propeller cur ...draft tube has been studied with visualisations to get an overview of the main flow regimes. LDV has been used at a number of cross sections for velocity29 KB (4,256 words) - 12:52, 3 May 2018
- ...performed in the High Speed Cascade Wind Tunnel of DFVLR Braunschweig. The main objective of these investigations was to obtain accurate data for the valid6 KB (865 words) - 18:42, 11 February 2017
- [[Image:figure_general_configuration_new.jpg|link=Main Page]]<br/> ...for the velocity components and the Reynolds stresses are A1 and B and the main one for the pressure coefficient is C (mid-span location). Note that39 KB (6,158 words) - 14:42, 12 February 2017
- ...domain has one inlet and one single outlet, so that the flow split at the main tube/collateral junction does not depend on the details of the outlet bound In order to enable comparison with the 4D Flow MRI measurements, two main post-processing steps were implemented to be coherent with the MRI acquisit18 KB (2,801 words) - 18:13, 16 February 2022
- ...ing air ducts, thus preventing excessive heating of the main fuel jet. The main flow of air passed through the air inlets at the bottom and it is this flow12 KB (1,951 words) - 13:22, 23 November 2018
- The main features of the flow which must be captured by the CFD modelling are:7 KB (1,042 words) - 13:09, 12 February 2017
- ...section, a contoured Boat-tail section and a constant Aftbody section. The main focus region is the Contoured Boat-tail section with APG and possible separ6 KB (958 words) - 15:51, 17 February 2023
- Here, the main conclusions are summarised, details are in the paper. ...ls with conventional near-wall treatments, are incapable of predicting the main physical features of turbulent flow in an axially rotating pipe.14 KB (2,246 words) - 14:02, 12 February 2017
- ...ws, buoyancy forces near the heated wall act in the direction opposing the main flow and increase turbulence production. Consequently the heat transfer is6 KB (908 words) - 12:55, 12 February 2017
- ...ength, ascending from the south to north portals with a slope of 3.2%. The main tunnel section is rectangular, surmounted by a semi-circular ceiling. The w ...ical velocity and the extent of any back-layering of smoke opposite to the main flow direction.14 KB (2,091 words) - 16:46, 11 February 2017
- Although qualitative predictions of the main features of the flow and heat transfer can be made using the standard k-&ep6 KB (993 words) - 13:10, 12 February 2017
- ...ngs of large plan dimensions but of lower heights, located upstream of the main terminal building. ...the terminal building and their heights are relatively low compared to the main building (~0.3H), As a result, the [[DOAPs]] for this Application Challenge14 KB (2,129 words) - 16:36, 11 February 2017
- ...curred, apart from a small laminar separation bubble on the wing nose. The main flow features are the growth of boundary layers and the mixing of such laye6 KB (1,003 words) - 12:25, 12 February 2017
- ...[#figure6|b]], respectively (see also [[EXP 1-2 Description|Fig. 2]]). The main aerodynamic parameters of the simulated boundary layer were the roughness l7 KB (1,011 words) - 10:22, 4 August 2023
- ...was that of Ince and Launder [38] in 1988 which consisted of the following main components:8 KB (1,160 words) - 14:24, 12 February 2017
- ...oss coefficient in Ames et al. experiment as well as those obtained in the main computations. Note that the experimental data shown here have been sent by ...the bottom wall in Ames et al. experiment as well as those obtained in the main computations (go to "Test Case Studies" section to find the definition of t18 KB (2,849 words) - 14:43, 12 February 2017
- ...|'''Figure 1:''' Swirl Flow test section made from Plexiglas including the main dimensions (length 1,500 mm).6 KB (954 words) - 16:18, 11 February 2017
- ...tive in gray: black trajectories represent fluid particles coming from the main pipe and gray trajectories represent the fluid particles coming from the to7 KB (1,024 words) - 16:02, 11 February 2017
- ...alled « Ahmed body » contains important features of real road vehicles : a main body, followed by a fully separated region. Prediction of separated flows i6 KB (948 words) - 10:37, 4 March 2024
- ...ger negative value than the observed one is predicted for the DS case. The main difference with respect to experiments is the extent of the positive skin f main bubble41 KB (5,488 words) - 13:30, 12 February 2017
- In summary, the main differences between the simulations are: ...mean velocity magnitude at cross sections in the mouth-throat/trachea, the main bifurcation and the left/right bronchi for the two different meshes examine37 KB (5,683 words) - 14:35, 27 October 2022
- ...use of a similar structured implicit multigrid solver for 2D problems. The main difference lays in the implementation of a low mach preconditioning of gove ...e four separated and consecutively iteration steps are performed after the main flow equation update to march in time both the turbulent and scalar fields.23 KB (3,470 words) - 15:26, 11 February 2017
- ...uced unsteadiness due to reversal flow and reattachment are described. The main controlling parameters are investigated (turbulence level which can increas ...rbulence level before the LE of the blade. Bypass transition, which is the main transition mechanism in this test case is strongly dependent on the free st36 KB (5,539 words) - 17:03, 11 February 2017
- ...he swirl helps to carry out mixing and the stabilisation of the flame. The main function of the swirl in a draft tube is to reduce flow separation and thus7 KB (1,184 words) - 14:13, 12 February 2017
- ...n models are fundamentally incapable of describing this flow as far as its main physical attributes are concerned. The two most important physical features7 KB (1,124 words) - 14:02, 12 February 2017
- The lower part of the model features the lower trachea, the main bifurcation and bronchi and the following branching generations. In reality, trachea and the main bronchi are supported by cartilages and do not contract or stretch signific14 KB (2,200 words) - 14:32, 27 October 2022
- ...under both converging and diverging situations. The flow rates through the main branch were chosen to give nominal Reynolds numbers of (5, 7, 9 and 12) x <8 KB (1,172 words) - 16:12, 11 February 2017
- ...because of its numerical stability and relatively simple formulation. The main disadvantage of the two-equation models is their poor performance under adv ...containing eddies (Malalasekera & Versteeg, 1996). This is always the main destruction term in the turbulent kinetic energy equation. However, the exa18 KB (2,820 words) - 13:14, 12 February 2017
- The main difference is the occurring swiveling mode. Whereas in the first test case8 KB (1,257 words) - 12:13, 12 February 2017
- ...levels on a jet in cross flow. They considered a circular jet hitting the main flow at 90 degrees. Jet types were 1) low turbulence (3%), uniform profile, ...be as close to the blade surface as possible, with minimal mixing into the main stream.42 KB (6,491 words) - 19:07, 11 February 2017
- The subgrid-scale (SGS) model chosen for the main simulation is the Smagorinsky model (Smagorinsky, 1963). It is applied with is the main reason why the phase-averaging procedure for the measurements comprises abo16 KB (2,477 words) - 12:13, 12 February 2017
- ...e test cases presented in the previous section. The model equation and the main features of the solver will be briefly described in the following sections.14 KB (2,109 words) - 17:02, 11 February 2017
- ...on the side of the airfoil nose induces a flow acceleration, which is the main cause of the increase of the wall shear stress in this region. Downstream o11 KB (1,671 words) - 11:55, 27 February 2023
- ...The flow and turbulence within a cyclone are determined principally by the main flow and are less sensitive to boundary layer effects. This was recently de7 KB (1,091 words) - 16:05, 11 February 2017
- The main parameter of interest is the heat transfer coefficient at the inner wall, a7 KB (1,126 words) - 16:14, 11 February 2017
- ...low on the pressure surface as it leaves the trailing edge is probably the main factor (see section 4.4). The results for mesh C are much closer to experim ...The results using simple meshes and standard model settings show that the main flow features are captured and that the overall performance is accurately p62 KB (8,108 words) - 18:42, 11 February 2017
- ...oncerns the measurements in a controlled diffusion compressor cascade. The main features of the cascade are included in [[SilverP:UFR_2-04_Description#tabl8 KB (1,152 words) - 19:39, 11 February 2017
- ...m considering flow where there is a clear principal flow direction and the main variation of velocity occurs in the direction normal to this direction. In7 KB (1,160 words) - 12:51, 12 February 2017
- ...utations failed to capture the mixing of the tip-clearance vortex with the main flow, downstream of the blades. As reported in open literature, this inabil Right: Detail near the leading edge region (red line: tip-grid, green line: main grid).33 KB (5,218 words) - 10:12, 3 May 2018
- ...The calculations were obtained on a curvilinear grid that conformed to the main channel, with the groynes blocked out. Only one grid was used so that the n9 KB (1,416 words) - 16:39, 11 February 2017
- ...d international comparison exercise for the purpose of CFD validation. The main application uncertainty is in the representation of the inlet diffuser in t8 KB (1,209 words) - 14:29, 12 February 2017
- The main uncertainty concerns the turbulence of the oncoming flow. The intensity was9 KB (1,357 words) - 19:33, 11 February 2017
- The main flow parameters are:8 KB (1,220 words) - 15:37, 11 February 2017
- The main assessment parameters for this study are: ...in this inlet region, which comes as a result of the superposition of the main flow and a secondary flow from the rotor gap (region between rotor tip and18 KB (2,886 words) - 05:47, 17 July 2023
- ...en the incipient turbulent boundary layer and the mounted airfoil, and the main physical phenomenon of interest is the horseshoe vortex developing at the j8 KB (1,196 words) - 11:38, 27 February 2023
- ...However, around the horseshoe vortex, the gradients of fluctuations in the main flow direction contribute to the dissipation in the same way as gradients i8 KB (1,321 words) - 15:52, 4 November 2020
- ...linear grid consisting of about 1 million nodes is adequate to capture the main flow features at Re = 10,595 correctly (provided that the points are reason ...ng the overall flow feature the subsequent workshop in 2002 summarized the main results as follows (Manceau et al. 2002):18 KB (2,766 words) - 13:38, 12 February 2017
- ...through small apertures is choked, it is very easy to figure out that the main factor responsible for this low performance is the rotation rate of the mac ...ary flows induced along the fixed lateral end walls by the rotation of the main flow (Ekman flows) have been evaluated (Marc D., 1998) and were expected to23 KB (3,641 words) - 14:32, 12 February 2017
- ...tion from laminar to turbulent flow and this can be regarded as one of the main potential reasons for the observed discrepancies between experiments and CF11 KB (1,780 words) - 11:33, 2 March 2018
- ...ndary layer and hence the performance characteristics of the aircraft. The main response to a shock is a thickening of the boundary layer possibly followed10 KB (1,442 words) - 12:47, 12 February 2017
- ...approach used for the simulation of the present flow problem. Firstly, the main numerical features of the code MIGALE are given. Then, information about th9 KB (1,301 words) - 16:12, 17 February 2023
- ...for several distances from the burner exit as well as 2-D distributions of main and interim species and temperature. Beside the mean and rms values of spec ...rd deviation reveals the presence of two shear layers at both sides of the main gas flow where fluctuations are increased. In the reactive flow, THT-LIF st18 KB (2,627 words) - 15:30, 11 February 2017
- The main experimental uncertainty concerns measurements of major species O2 and CO.9 KB (1,421 words) - 15:31, 11 February 2017
- Since the main computational uncertainty of this configuration is related to the choice of9 KB (1,318 words) - 15:39, 11 February 2017
- The main obstacle in the simulation of this flow is the external boundary condition.9 KB (1,386 words) - 12:30, 12 February 2017
- ...bine itself, submerged bottom outlets in hydropower dams,the flow from the main circulation pumps of internal type in boiler water nuclear reactors and roo9 KB (1,463 words) - 13:05, 12 February 2017
- ...ly consists of a circular bluff-body with an orifice at its center for the main fuel. Masri et al have conducted comprehensive experimental investigations ...hould be noted that the bluff-body jet flames consist, generally, of three main zones: stabilisation, extinction and reignition zones.46 KB (6,994 words) - 15:27, 11 February 2017
- The main information on solution strategy has been given already in the [[#CFD simul9 KB (1,333 words) - 16:39, 11 February 2017
- ...l approach used for the simulation of the present flow problem. First, the main numerical features of the code MIGALE are given. Then, information about th9 KB (1,371 words) - 11:44, 27 February 2023
- ...here flow using LES. Based on the earlier study (Tavakol et al., 2010) the main focus was to highlight the superior results of the applied LES compared to10 KB (1,458 words) - 13:48, 12 February 2017
- ...calculation for the wall jet to define its flow parameters at inlet to the main test section.10 KB (1,618 words) - 15:49, 11 February 2017
- Comparing the efficiency functions (which is the main model parameter) the differences (marked with arrows in Fig. 5.4 and 5.5) b10 KB (1,599 words) - 18:04, 14 May 2018
- The results show that the main flow features are captured and that the overall performance is reasonably a ...odied in the functions correspond with the reality of the application. The main assumptions on which the presently employed wall functions are based are th47 KB (6,363 words) - 18:42, 11 February 2017
- ...s, ignition delay times and also by distributions of the concentrations of main species in the flow field of the flame. .... Beside the prediction of heat release rates and the concentration of the main combustion products there is a need to predict emission data. In particular43 KB (6,441 words) - 14:25, 20 May 2008
- <li>'''Subgrid-scale model''': Besides the main numerical issues mentioned in the previous sections (i.e.. appropriate reso As mentioned before, for the main simulation in the present study the Smagorinsky model with <math>C_s</math>21 KB (3,205 words) - 13:50, 12 February 2017
- ...entre line velocity ahead of the step which was approximately 7.7 m/s. The main parameters of the inflow boundary layer at x/h=-3.05 are:10 KB (1,597 words) - 13:29, 12 February 2017
- ...the variety of numerical schemes and meshes give many indications that the main issue is not numerical, but linked to the physical modeling: turbulence mod10 KB (1,593 words) - 10:36, 4 March 2024
- ...phenomenon separately. The specification of the initial conditions is the main problem.10 KB (1,606 words) - 14:33, 12 February 2017
- The main conclusions of this report were: ...ise direction is of great importance. This is particularly true inside the main flow where the refinement of the mesh is often neglected in favor of the bo38 KB (5,626 words) - 14:10, 12 February 2017
- ...ents performed have raised several numerical and modelling issues. The two main problems encountered so far are the choice (and calibration) of the most ap10 KB (1,461 words) - 15:47, 11 February 2017
- ...affected by the size of the tip-clearance and the rotation of the hub. The main vortex appearing is the tip-clearance one. In addition, an outer passage vo10 KB (1,544 words) - 10:14, 3 May 2018
- In summary, the main differences in LES and RANS simulations are: in the mouth-throat/trachea, the main bifurcation and the left/right bronchi for the three45 KB (7,149 words) - 08:40, 21 October 2019
- The experimental arrangement is shown in Figures 8 and 9. The main discharging into the main flow domain.32 KB (5,037 words) - 19:18, 11 February 2017
- vortical structures with vorticity components aligned to the main flow direction. Thus for a detailed FSI simulation eddy-resolving in the main flow direction is noticeable.29 KB (4,485 words) - 12:14, 12 February 2017
- * The main focus of the UFR Best Practice Advice is on turbulence modeling. Therefore23 KB (2,937 words) - 18:43, 11 February 2017
- ...position. The camera axis was aligned perpendicularly to the flow and the main atomizer axis with backlit illumination, see '''[[#figure11|Figure 11]]'''.10 KB (1,554 words) - 08:23, 17 August 2023
- measurement positions was smaller near the walls and larger near the main core of the flow. The main idea is to use an upwinding scheme in combination with a biasing function t26 KB (3,904 words) - 14:46, 12 February 2017
- The following table gives the main dimensions of the stator.14 KB (2,040 words) - 14:09, 12 February 2017
- There are four main areas where this underlying flow regime - tip clearance flow and wing/blade12 KB (1,882 words) - 19:04, 11 February 2017
- statistical link between these corner flows and the main separation area13 KB (1,855 words) - 13:45, 12 February 2017
- The main features of the flow are the on-axis recirculation region,the vortex rope10 KB (1,442 words) - 18:49, 11 February 2017
- ...results show that Lien-cubic <math>{k-\epsilon}</math> underestimates the main character of the14 KB (2,288 words) - 18:49, 11 February 2017
- ...ade in this series of tests as they are available in Szczepura (1985): the main focus in the work of Baughn et al. (1984) was on the Nusselt numbers downst11 KB (1,729 words) - 13:09, 12 February 2017
- ...the shock-wave region and near the leading edge and the trailing edge. The main source of energy losses in the transonic regime is the existence of shock w13 KB (1,937 words) - 18:46, 11 February 2017
- ...ith a characteristic length of 0.7 mm was found fine enough to resolve the main flow features.9 KB (1,351 words) - 18:14, 16 February 2022
- The main assessment parameters ([[DOAPs]]) for this AC are12 KB (1,966 words) - 09:53, 3 May 2018
- gravity force is aligned with the x-axis in main flow direction. elements are used in the main flow direction and 30 in the spanwise38 KB (5,874 words) - 12:10, 12 February 2017
- The main parameters which define the experiment are the fire heat release rate and t12 KB (1,820 words) - 16:45, 11 February 2017
- The prediction of the onset location and extention of transition is of the main importance to correctly design the turbine blading. It is clear today that ...production rate as well the onset location of transition as a function of main transition governing parameters namely the streamwise pressure gradient and27 KB (4,110 words) - 12:43, 12 February 2017
- The main differences are observed in the boundary layer in the wall regions.17 KB (2,622 words) - 14:47, 12 February 2017
- ...itter leading edge there were 32 circumferential positions between the two main blades.41 KB (5,394 words) - 18:38, 11 February 2017
- ...w rates, and diameters of the nozzle holder (Sommerfeld and Qiu 1998). The main parameters for the different experimental conditions are summarised in Tabl15 KB (2,258 words) - 16:08, 11 February 2017
- ...ary layer resolution is not critical as the turbulence is generated in the main flow. At the underflow and overflow a central back flow of fluid can occur.13 KB (2,014 words) - 16:06, 11 February 2017
- characterized by intensive secondary currents — being normal to the main14 KB (1,976 words) - 14:40, 12 February 2017
- Thus, one of the main findings of the present research is the evidence that the second moment clo14 KB (2,246 words) - 11:36, 12 March 2019
- ...ness of CFD in modelling comfort and ventilation efficiency, which are the main ventilation system design parameters. The ventilation flow pattern generate12 KB (1,922 words) - 14:28, 12 February 2017
- ...and in particular its variations with the slant angle (see figure), is the main global parameter to be predicted.13 KB (1,922 words) - 09:47, 14 February 2024
- ...wall at x/deff=35.9 for the buoyant case at Re=4000, Bo=2.89. (Position of main grid nodes is indicated by symbols on the wall function solutions).12 KB (1,721 words) - 16:16, 11 February 2017
- ...y adjusting the flow rate of the cooling water supplied to the cooler. The main parameters and experimental conditions in the experiments performed are sum13 KB (2,024 words) - 15:48, 11 February 2017
- ...own in [[UFR_3-36_Test_Case#figure2|Fig. 2]]. The geometry comprises three main sections: An upstream section with <math>{11.84 H}</math>, the curved-step15 KB (2,261 words) - 15:53, 17 February 2023
- ...and therefore the boundaries do not move. In reality, the trachea and the main13 KB (2,065 words) - 13:12, 4 January 2022
- ...potential applications for CFD. These have been grouped into the following main areas: These contributions form the main part of the report (Section 3), which is prefaced by a brief overview on th73 KB (11,056 words) - 14:25, 21 May 2008
- ...oo coarse for an LES, but interestingly, the LES on a 6M grid produced the main flow features - the pressure pulsations, velocity profiles and the ''rms''12 KB (1,835 words) - 11:37, 12 March 2019
- ... 0.12 m). It was decided to attach an inlet buffer domain to the main computational area, allowing the inlet velocity and temperature profiles to14 KB (2,198 words) - 11:15, 16 August 2019
- The main contribution to the uncertainties comes from the window curvature. In the r16 KB (2,347 words) - 16:54, 11 February 2017
- ...ced by Durst and co-workers in Figs 3-10. The ESDU CFD results predict the main flow features observed and measured experimentally, qualitatively and quant22 KB (3,529 words) - 14:35, 12 February 2017
- ...ary conditions at the lateral sides''': The edges which are aligned to the main flow direction need different boundary condition modeling, depending on whe14 KB (2,225 words) - 12:11, 12 February 2017
- An analysis of these figures clarifies the main reason for the large values of Cp<sub>r,wall</sub>, and also for the large The main reason for this difference in radial pressure distribution is that the grid185 KB (22,705 words) - 10:00, 3 May 2018
- ...conditions at the lateral sides''': At the edges which are aligned to the main flow direction, special boundary conditions are used, as explained in detai14 KB (2,203 words) - 12:14, 12 February 2017
- ...B ALSTOM). The tested profile is scaled 3.4 times to the original one. The main geometrical parameters of the cascade were: the blade chord length ''b<sub>15 KB (2,325 words) - 12:43, 12 February 2017
- ...on term in the k-epsilon model is quadratic in the strain rate) is not the main issue in this case, since the second-moment closure gives the same overesti20 KB (3,022 words) - 13:02, 12 February 2017
- ...URANS grids to analyze the influence of the spatial discretization on the main assessment parameters. The URANS computation on the finest grid was perform15 KB (2,328 words) - 10:52, 11 January 2023
- The system layout and the main dimensions of the mobile CARS unit are shown in [[Test_Data_AC2-12#figure5|15 KB (2,349 words) - 11:15, 16 August 2019
- The grid has 5 main blocks: 1 block in the outer or Euler Region (ER), 3 blocks in the Focus R16 KB (2,383 words) - 14:30, 7 November 2019
- ...ormed at QINETIQ, for case 1-2-3-4, and at CIRA, only for case 2, with the main aim of validation and assessment of the turbulence models employed.30 KB (4,799 words) - 14:58, 11 February 2017
- '''Model Position: '''Accuracy of geometrical angle of attack of main wing: ± 0.05°23 KB (3,309 words) - 12:26, 12 February 2017
- ...etermine scalar fluxes at selected positions. In addition temperatures and main species concentrations were deduced from 1D Raman/Rayleigh spectroscopy. Th20 KB (2,845 words) - 15:38, 11 February 2017
- ...(N=0) hub. Since all test cases correspond to the same mass flow rate, the main problem definition parameters (PDPs) are the tip-clearance size and the rot21 KB (3,458 words) - 10:11, 3 May 2018
- ...e the impact of these uncertainties on the measurements/predictions of the main flow quantities and, when possible,22 KB (3,270 words) - 12:16, 12 February 2017
- ...ffect of the tip gap, which in that grid was represented by two cells. The main grid data is given in Table 2.42 KB (5,567 words) - 11:36, 12 February 2017
- capable of predicting the experimental spectra, particularly the main22 KB (3,263 words) - 10:02, 7 September 2022
- experimental data is shown for the main body of these simulations.27 KB (3,997 words) - 11:09, 15 March 2018
- ...r penetration length than those of the other two near-wall treatments. The main difference as far as the flow dynamics are concerned is that at the higher23 KB (3,593 words) - 15:48, 11 February 2017
- ...Evaluation#cwe|a comparison with the experimental data]] is shown for the main body of simulations carried out within30 KB (4,642 words) - 12:07, 12 February 2017
- in the first generations. At the flowrate examined in the present AC, the main deposition21 KB (3,107 words) - 08:42, 21 October 2019
- ...b) show the TKE production using the PIV and LES results, respecively. The main region of positive production of turbulent kinetic energy can be found upst32 KB (5,141 words) - 15:55, 4 November 2020
- ...llowing the advice given by Garcia-Villalba et al. (2009). To describe the main features of the flow, two-dimensional color plots of34 KB (5,359 words) - 13:49, 12 February 2017
- The papers by Eriksson et al. (1998) and Karlsson et al.(1993 a, b) are the main experimental papers and contain the data which constitute the data bank con32 KB (4,651 words) - 13:06, 12 February 2017
- *the mixture fraction was assumed equal to 1.0 in the main jet; 0.27 in the pilot jet and zero in the co-flowing air.36 KB (5,627 words) - 15:42, 11 February 2017
- ...ly consists of a circular bluff-body with an orifice at its centre for the main fuel. Bluff-body burners have been used with a range of bluff-body diameter29 KB (4,408 words) - 15:26, 11 February 2017
- (Bad link, DCE 10-03-10)-->. Here will be found information on the two main velocity components at the inlet, information on the wall roughness, wall p68 KB (9,429 words) - 09:58, 3 May 2018
- ...ed here for completeness as it contains useful additional information. The main purpose of the study was to investigate wind-assisted stack ventilation, bu29 KB (4,750 words) - 14:20, 12 February 2017
- ...wer part of the model in the experiments, the achieved flowrate within the main bifurcation and bronchi region was about 10% lower than in the upper part o23 KB (3,315 words) - 14:36, 27 October 2022
- as the main images and the PET images as background images. The software Carimas25 KB (4,032 words) - 11:11, 30 September 2021
- ...without any artificial, numerical oscillations in the bluff-body wake. The main reason why the URANS approach was adopted for OF was difficulties to get st34 KB (5,325 words) - 11:15, 16 August 2019
- ...nd their frequencies as well as on the decay in the inertial subrange. The main reason to use CTA for this specific analysis instead of LDA is that raw dat39 KB (6,325 words) - 13:49, 12 February 2017
- smoothness, two main issues motivated the distribution of the grid33 KB (5,138 words) - 13:36, 12 February 2017
- ...al data in order to demonstrate the simulation accuracy and to deliver the main characteristics of the system under study.41 KB (5,607 words) - 15:57, 2 November 2018
- Laboratories involved a main chamber with dimensions51 KB (7,726 words) - 19:17, 11 February 2017
- We mention here only their general classification into two main54 KB (7,969 words) - 14:39, 12 February 2017