 |
 |
 |
|
|
|
[Sponsors] | ||||
January 18, 2002, 14:34
|
Correct time step
|
#1 |
|
Guest
Posts: n/a
|
Dear all
Need some help about deciding on the correct time step size and max number of iteration per time step? Fluent suggest 10-20, should you set it at that anyway at the beginning even if it could do say 100. Don't know how to calculate a good time step size and when to increase it and by how much, I am using an implicit scheme. Shaw recommends that you use (delta)t=L/NW, where L is the domain length, N is the number of cells down that length and w is the free stream speed, he then says to half it. Anybody agree, disagree, got a better method, plus need help on the above. Cheers Andy |
|
|
||
 |
|
|
Similar Threads
|
||||
| Thread | Thread Starter | Forum | Replies | Last Post |
| Time step size and max iterations per time step | pUl| | FLUENT | 31 | October 23, 2020 23:50 |
| SLTS+rhoPisoFoam: what is rDeltaT??? | nileshjrane | OpenFOAM Running, Solving & CFD | 4 | February 25, 2013 05:13 |
| Error while running rhoPisoFoam.. | nileshjrane | OpenFOAM Running, Solving & CFD | 8 | August 26, 2010 13:50 |
| directMapped problem | panda60 | OpenFOAM Bugs | 4 | July 8, 2010 11:23 |
| IcoFoam parallel woes | msrinath80 | OpenFOAM Running, Solving & CFD | 9 | July 22, 2007 03:58 |
Linear Mode
