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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