GAMG with transientSimpleDyMFoam

MichiB · January 14, 2011, 05:09

Hi collegues!

Can anybody give my a quick reply on whether GAMG can be used to solve the poisson equation of the transientSimpleDyMFoam solver? (Otherwise I will have to tweak the solver a bit)

I didn't manage to get it running so far (with GAMG)...

cheers - Michi

MartinB · January 14, 2011, 08:51

Hi Michi,

the dynamic mesh makes it necessary to disable the cache agglomeration option for AMG. Therefor use the following option in the fvSolution file:

Code:

pd
{
    solver           GAMG;
    tolerance        1e-7;	
    cacheAgglomeration off;
    . . . .

Martin

MichiB · January 17, 2011, 08:43

Thank you for helping me save a whole lot of time Martin!

Now it works fine.

Cheers!

January 14, 2011, 05:09	GAMG with transientSimpleDyMFoam	#1
MichiB New Member Michael Buchmayr Join Date: Mar 2010 Posts: 16 Rep Power: 9	Hi collegues! Can anybody give my a quick reply on whether GAMG can be used to solve the poisson equation of the transientSimpleDyMFoam solver? (Otherwise I will have to tweak the solver a bit) I didn't manage to get it running so far (with GAMG)... cheers - Michi

January 14, 2011, 08:51		#2
MartinB Senior Member Martin Join Date: Oct 2009 Location: Aachen, Germany Posts: 253 Rep Power: 13	Hi Michi, the dynamic mesh makes it necessary to disable the cache agglomeration option for AMG. Therefor use the following option in the fvSolution file: Code: pd { solver GAMG; tolerance 1e-7; cacheAgglomeration off; . . . . Martin

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January 17, 2011, 08:43		#3
MichiB New Member Michael Buchmayr Join Date: Mar 2010 Posts: 16 Rep Power: 9	Thank you for helping me save a whole lot of time Martin! Now it works fine. Cheers!