Search Results

User Name Remember Me Password

Showing results 1 to 7 of 7 Search took 0.00 seconds. Search: Posts Made By: FelixL

Forum: OpenFOAM September 27, 2011, 16:27

Replies: 23 SST SimpleFoam Convergence Problems Views: 6,896 Posted By FelixL Using the drag coefficient along the channel's... Using the drag coefficient along the channel's walls should do the trick ;) This should be constant in the end, too (for a steady state problem!). Greetings, Felix

Forum: OpenFOAM September 24, 2011, 03:09

Replies: 23 SST SimpleFoam Convergence Problems Views: 6,896 Posted By FelixL Good morning, camoesas, well, well - the... Good morning, camoesas, well, well - the mysteries of computational fluid dynamics :D I'm glad it works now. Yeah it's quite common that the residuals convergence rate decreases when...

Forum: OpenFOAM September 21, 2011, 12:50

Replies: 23 SST SimpleFoam Convergence Problems Views: 6,896 Posted By FelixL Good evening, camoesas, I don't... Good evening, camoesas, I don't understand your post #16. Did you extend the grid in flow direction AND change the linear solvers? The linear solvers are only responsible for solving the...

Forum: OpenFOAM September 20, 2011, 13:49

Replies: 23 SST SimpleFoam Convergence Problems Views: 6,896 Posted By FelixL Hello, guys, black squirrel: Setting... Hello, guys, black squirrel: Setting omega to 1e-8 at the wall is clearly wrong. Omega approaches infinity when y+ -> 0, so it has to be some finite, but pretty high value. See e.g. the book...

Forum: OpenFOAM September 19, 2011, 13:38

Replies: 23 SST SimpleFoam Convergence Problems Views: 6,896 Posted By FelixL At the OUTLET, k should be set to zeroGradient.... At the OUTLET, k should be set to zeroGradient. The rest looks good, though! Greetings, Felix

Forum: OpenFOAM September 19, 2011, 07:35

Replies: 23 SST SimpleFoam Convergence Problems Views: 6,896 Posted By FelixL Good afternoon, Camoesas, your wall... Good afternoon, Camoesas, your wall boundary conditions are still wrong. Like the black squirrel said, k has to be set to 0 at the wall (for boundary layer resolving meshes!). Also, omega needs...

Forum: OpenFOAM September 15, 2011, 12:29

Replies: 23 SST SimpleFoam Convergence Problems Views: 6,896 Posted By FelixL Good evening, Camoesas, I presume your... Good evening, Camoesas, I presume your mesh is fully orthogonal and the wall is appropriately resolved cell-size-ratio-wise? There are two things I'd comment to: 1. You say youre running...

Showing results 1 to 7 of 7

Forum Jump User Control Panel Private Messages Subscriptions Who's Online Search Forums Forums Home General Forums     Main CFD Forum     System Analysis     Structural Mechanics     Electromagnetics     CFD Freelancers     Hardware     Lounge Software User Forums     ANSYS         CFX         FLUENT             Fluent Multiphase             Fluent UDF and Scheme Programming         ANSYS Meshing & Geometry     Autodesk Simulation CFD     AVL FIRE     COMSOL     CONVERGE     Fidelity CFD     FloEFD, FloWorks & FloTHERM     FLOW-3D     OpenFOAM         OpenFOAM News & Announcements             OpenFOAM Announcements from ESI-OpenCFD             OpenFOAM Announcements from OpenFOAM Foundation             OpenFOAM Announcements from Other Sources         OpenFOAM Installation         OpenFOAM Meshing & Mesh Conversion         OpenFOAM Pre-Processing         OpenFOAM Running, Solving & CFD         OpenFOAM Post-Processing         OpenFOAM Programming & Development         OpenFOAM Verification & Validation         OpenFOAM Community Contributions             OpenFOAM CC Toolkits for Fluid-Structure Interaction         OpenFOAM Journal         OpenFOAM Bugs     Phoenics     REEF3D         REEF3D News & Announcements     Siemens         STAR-CCM+         STAR-CD     SU2         SU2 News & Announcements         SU2 Installation         SU2 Shape Design Mesh Generation & Pre-Processing Software     ANSA     enGrid     GridPro     Pointwise & Gridgen Visualization & Post-Processing Software     EnSight     FieldView     ParaView     Tecplot Special Topics     Mesh Generation & Pre-Processing     Visualization & Post-Processing CFD Online Community     Site News & Announcements     Site Help, Feedback & Discussions     CFD-Wiki