Pressure correction algorithm

Farzam · March 8, 2019, 22:06

Hi

Does anyone know which pressure correction algorithm FLOW-3D uses? I didn't find anything in the help.

Thanks,
Farzam

thunde47 · March 14, 2019, 18:45

Pressure solver algorithm is GMRES, you can see it in the numerics tab, along with other algorithms for the pressure solver that FLOW-3D provides.

Is that what you were asking or did you mean the corrector part of the predictor-corrector type numerical scheme?

Farzam · March 14, 2019, 20:51

Thanks Adwaith! I meant the corrector part of the predictor-corrector type numerical scheme.

I found this document on your website: "Improved Generalized Minimal Residual (GMRES) Solver in FLOW-3D—How it works and when to use it". It describes it well.

To my understanding GMRES is only a solver in a bigger algorithm, but the whole thing is so-called GMRES, so the algorithm doesn't have a separate name (like SIMPLE, PISO,...) Is that true?

Thanks,
Farzam

March 8, 2019, 22:06	Pressure correction algorithm	#1
Farzam New Member Join Date: Dec 2017 Posts: 20 Rep Power: 9	Hi Does anyone know which pressure correction algorithm FLOW-3D uses? I didn't find anything in the help. Thanks, Farzam

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March 14, 2019, 18:45		#2
thunde47 Senior Member thunde47 Join Date: Dec 2015 Location: India, USA Posts: 133 Blog Entries: 1 Rep Power: 11	Pressure solver algorithm is GMRES, you can see it in the numerics tab, along with other algorithms for the pressure solver that FLOW-3D provides. Is that what you were asking or did you mean the corrector part of the predictor-corrector type numerical scheme?

March 14, 2019, 20:51		#3
Farzam New Member Join Date: Dec 2017 Posts: 20 Rep Power: 9	Thanks Adwaith! I meant the corrector part of the predictor-corrector type numerical scheme. I found this document on your website: "Improved Generalized Minimal Residual (GMRES) Solver in FLOW-3D—How it works and when to use it". It describes it well. To my understanding GMRES is only a solver in a bigger algorithm, but the whole thing is so-called GMRES, so the algorithm doesn't have a separate name (like SIMPLE, PISO,...) Is that true? Thanks, Farzam