|
[Sponsors] |
July 9, 2007, 07:11 |
Relaxation and Solver Parameters
|
#1 |
Guest
Posts: n/a
|
Hi,
I want to now if the the number of sweeps and Residual tolerance a causes for divergance (work with Star-CD 3.26) thanks, |
|
August 6, 2007, 06:34 |
Re: Relaxation and Solver Parameters
|
#2 |
Guest
Posts: n/a
|
plz, can u tell, when we are using modified MAC method and solving 3d-channel turbulent flow. 1. should we use underrelax or overrelax. 2. what should be the continuity satisfying limit. 3. what shoul be the inlet velocity profile and initial condition for tha channel for turbulent flow simulation.
this is rectangular channel. |
|
August 21, 2007, 18:46 |
Re: Relaxation and Solver Parameters
|
#3 |
Guest
Posts: n/a
|
hi,
actually i am not using any software...i wrote a code in fortran using SMAC solver./ so, can u plz help me to ans my question in pretext to code not in softre... |
|
September 25, 2007, 02:38 |
Re: Relaxation and Solver Parameters
|
#4 |
Guest
Posts: n/a
|
I use underrelax 1E-04, think you should underrelax. If you have a rectangular profile, i think you should use rectangular profile @ initial velocity.
So I think you need to do that, an after you can see, if the result is correct or no, you can calculate maybe the pressure drop, an look in significant or not. |
|
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
exper parameters on solver | laura | CFX | 1 | January 9, 2009 08:50 |
parameters to select a solver for a model in gambt | abid | FLUENT | 2 | September 20, 2006 14:07 |
How to set the two parameters of solver binterFoamb | luckyluke | OpenFOAM Running, Solving & CFD | 7 | June 3, 2005 07:33 |
Relaxation Parameters. | J. Keays | Main CFD Forum | 3 | October 16, 2000 14:42 |
Relaxation Parameters. | J. Keays | FLUENT | 1 | October 16, 2000 03:00 |