|
[Sponsors] |
![]() |
![]() |
#1 |
Member
|
Hello, colleagues.
Please, help me with the following problem. I'm solving transport equations (convection + diffusion) for some species using Euler implicit representation of time derivative term (fvm::ddt in solver code and Euler scheme fvSchemes). Such implicit scheme must be unconditionally stable. Why anything crashes if Courant number > 1? I mean iterative process in solving discretized equations diverges. And please, tell me, is there in OpenFOAM of method to solve Navier-Stokes equations for laminar flow, which lets to set Courant number > 1? Best regards, Aleksey. |
|
![]() |
![]() |
![]() |
![]() |
#2 |
Member
Vojtech Betak
Join Date: Mar 2009
Location: Czech republic
Posts: 34
Rep Power: 18 ![]() |
Hi Aleksey,
try to use solver pimpleFoam. It's stable for Co > 1. Vojta |
|
![]() |
![]() |
![]() |
|
|