|
[Sponsors] |
need for an unsteady implicit solver suitable for large timestep |
![]() |
|
LinkBack | Thread Tools | Search this Thread | Display Modes |
![]() |
![]() |
#1 |
Member
Leonardo Nettis
Join Date: Mar 2009
Posts: 72
Rep Power: 18 ![]() |
Dear all,
at the moment I'm facing the simulation of a flow around a sphere. The Reynolds is very low (27), therefore pressure and velocity are steady. However the next step consists in performing a simulation in which the temperature at the inlet is linearly changing in time. Therefore I have to use a transient solver. Due to the fact that the flow is steady (no risk of changing the physics of the flow) and due to the huge amount of time I have to simulate, I think the best solution is a very large time step. That's not possible with icofoam since it will take approximately 400 days to obtain the solution!!!! But I hope my PhD will end up by that time ![]() Somebody knows an alternative solver able to do that?!?!? Thanks in advance, Dino |
|
![]() |
![]() |
![]() |
![]() |
#2 |
Member
Leonardo Nettis
Join Date: Mar 2009
Posts: 72
Rep Power: 18 ![]() |
I already tried pimpleFoam, but it seems to be not appropriate since starting from a converged solution, in terms of pressure and velocity, and using a Co=2 the pressure residuals are fixed to 0.8!!!!
Any suggestion is well accepted!! |
|
![]() |
![]() |
![]() |
![]() |
#3 |
Member
Join Date: Nov 2009
Posts: 36
Rep Power: 17 ![]() |
||
![]() |
![]() |
![]() |
Thread Tools | Search this Thread |
Display Modes | |
|
|
![]() |
||||
Thread | Thread Starter | Forum | Replies | Last Post |
2D Unsteady Potential Flow Solver | A.S. | Main CFD Forum | 2 | November 16, 2005 03:38 |
Unsteady timestep | Unsteady Guy | Main CFD Forum | 4 | November 13, 2005 22:02 |
nUMECA UNSTEADY SOLVER | dimitris | Main CFD Forum | 1 | May 16, 2001 10:28 |
FD NS implicit solver | N.SUBRAMANIAN | Main CFD Forum | 6 | August 20, 2000 22:24 |
Matlab Unsteady 1D Euler Solver??? | Johan Sylwander | Main CFD Forum | 1 | May 24, 2000 15:26 |