|October 16, 2011, 13:02||
Join Date: May 2011
Posts: 11Rep Power: 7
ı have a simple question.
I read from tutorials that "Second-Order Upwind – Uses larger stencils for 2nd order accuracy, essential with
tri/tet mesh or when flow is not aligned with grid; convergence may be slower." .
I did not understand actually what does it mean with "when flow is not aligned with grid". Does it mean, if you can not guess the flow direction and you can not mesh geometry according to flow direction (so you used tri/tet mesh), you should use second order upwind method?
Please help me
|Thread||Thread Starter||Forum||Replies||Last Post|
|grid dependancy||gueynard a.||Main CFD Forum||19||June 27, 2014 21:22|
|smoothSolver diverges - solution in using PBiCG solver?||makaveli_lcf||OpenFOAM Running, Solving & CFD||3||September 11, 2013 12:44|
|IcoFoam parallel woes||msrinath80||OpenFOAM Running, Solving & CFD||9||July 22, 2007 02:58|
|solution singularity||litonx||OpenFOAM Running, Solving & CFD||1||February 21, 2007 02:32|
|Could anybody help me see this error and give help||liugx212||OpenFOAM Running, Solving & CFD||3||January 4, 2006 19:07|