|
[Sponsors] |
Regarding different matrix solvers applicability |
|
LinkBack | Thread Tools | Search this Thread | Display Modes |
April 25, 2014, 04:24 |
Regarding different matrix solvers applicability
|
#1 |
Senior Member
Join Date: Oct 2013
Posts: 397
Rep Power: 18 |
I have noticed that some matrix solvers are not applicable for certain tasks. For example, using the discrete ordinate radiation model required me to use the GAMG solver. Same thing happened to me when I tried to solve an equation of the form laplace(sigma, phi)=0. Using the PCG solver resulted in highly unphysical results for some configurations of the sigma field and the phi BCs.
Now my knowledge of the mathematics of the matrix solvers is not very deep, but I was wondering if anyone can explain to me how to find the best solver for a task. Are there general pros/cons of a solver, do you just try until you find one that works stable for a task, or what is the best approach here? |
|
April 29, 2014, 05:16 |
|
#2 |
Senior Member
Join Date: Oct 2013
Posts: 397
Rep Power: 18 |
Can anyone provide some insight?
|
|
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
unknown asymmetric matrix solver | ebaldwin | OpenFOAM Running, Solving & CFD | 2 | February 17, 2014 13:07 |
Force can not converge | colopolo | CFX | 13 | October 4, 2011 22:03 |
OpenFOAM version 1.6 details | lakeat | OpenFOAM Running, Solving & CFD | 42 | August 26, 2009 21:47 |
New matrix solvers in OpenFOAM | kar | OpenFOAM Running, Solving & CFD | 0 | May 10, 2008 08:01 |
sparse matrix solvers | ahmed mobarki | Main CFD Forum | 3 | August 30, 2000 22:06 |