Search Results

User Name Remember Me Password

Showing results 1 to 8 of 8 Search took 0.00 seconds. Search: Posts Made By: Hooman

Forum: Main CFD Forum March 6, 2013, 12:25

Replies: 12 periodic boundary conditions with a gradient term Views: 1,388 Posted By Hooman I just took the average of the CDS obtained for... I just took the average of the CDS obtained for the cell centres to the two sides of the faces of the current cell and it seems to work OK so far ... It involves more cells, but for now I think it's...

Forum: Main CFD Forum March 6, 2013, 12:05

Replies: 12 periodic boundary conditions with a gradient term Views: 1,388 Posted By Hooman Thanks again! I have thought about moving the... Thanks again! I have thought about moving the nodes but was trying my best to stick with FVM with nodes in the centre, because I have convection terms as well. I will give it some serious thought...

Forum: Main CFD Forum March 6, 2013, 09:07

Replies: 12 periodic boundary conditions with a gradient term Views: 1,388 Posted By Hooman aaa! well spotted! that improved the results a... aaa! well spotted! that improved the results a little. Many Thanks! still looking for a central differenced scheme if anyone has any ideas ... I will keep looking myself!

Forum: Main CFD Forum March 6, 2013, 08:37

Replies: 12 periodic boundary conditions with a gradient term Views: 1,388 Posted By Hooman This is the term I'm trying to discretize using... This is the term I'm trying to discretize using FVM: \intop_{\Gamma}\frac{\partial\underline{u}}{\partial x}.\underline{n}d\Gamma\overline{} where {\Gamma} , is the cell surface. Versteeg...

Forum: Main CFD Forum March 6, 2013, 08:26

Replies: 12 periodic boundary conditions with a gradient term Views: 1,388 Posted By Hooman This forum was my last resort not first! I've... This forum was my last resort not first! I've read Versteeg, and other books, etc. I couldn't find what I wanted, perhaps because my equations are slightly different. Thanks anyways! Your replies...

Forum: Main CFD Forum March 6, 2013, 07:37

Replies: 12 periodic boundary conditions with a gradient term Views: 1,388 Posted By Hooman Thanks Andy, just added a bit to my... Thanks Andy, just added a bit to my previous question, I would appreciate you answer to that as well: about CDS, would the expression "du/dx = (u_i+1 - u_i-1)/(x_i+1 - x_i-1) " give du/dx across...

Forum: Main CFD Forum March 6, 2013, 07:07

Replies: 12 periodic boundary conditions with a gradient term Views: 1,388 Posted By Hooman oooh! Thanks! Stupid of me to think I was using... oooh! Thanks! Stupid of me to think I was using CDS! I want to avoid a scheme that is based on the direction of the flow, are there such schemes that can be used just with 2 neighbouring cells...

Forum: Main CFD Forum March 6, 2013, 04:11

Replies: 12 periodic boundary conditions with a gradient term Views: 1,388 Posted By Hooman periodic boundary conditions with a gradient term Hi, I have been trying to implement periodic bc's in my 1D code, I have a gradient term in my code, which I have discretized by using central differencing, so I have du/dx = (u_i+1 - u_i)/(x_i+1 -...

Showing results 1 to 8 of 8

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