size of domain

bengy · April 5, 2011, 07:37

Hi everyone,

Is it possible that size of domain influence on stability of computation? (I mean: bigger domain -> better stability)

Regards
Bengy

gwierink · April 6, 2011, 06:23

Hi Bengy,

It depends on your system. In particular, the mesh density in relation to the physics you want to resolve (e.g. eddy size) and possible wall effects as in e.g. multiphase flows. So, in answer to your question, possibly yes, depending on the type and scale of physics solved for.

bengy · April 6, 2011, 06:55

Hi,

Yes, I know that mesh size and concentrate of this mesh are one of the most important things in whole simulation

I just wanted know what about the domain (with steady numbers of mesh cells)

Bengy

k.vimalakanthan · May 23, 2011, 09:43

Quote:

Originally Posted by bengy

Hi,

Yes, I know that mesh size and concentrate of this mesh are one of the most important things in whole simulation

I just wanted know what about the domain (with steady numbers of mesh cells)

Bengy

I also like to know the effect of mesh domain size while keeping the number of nodes constant? And is there a way to quantify the errors such as for mesh refinement study we use Richardson’s extrapolation with GCIs.

April 5, 2011, 07:37	size of domain	#1
bengy New Member Join Date: Jul 2010 Posts: 29 Rep Power: 15	Hi everyone, Is it possible that size of domain influence on stability of computation? (I mean: bigger domain -> better stability) Regards Bengy

April 6, 2011, 06:23		#2
gwierink Senior Member Gijsbert Wierink Join Date: Mar 2009 Posts: 383 Rep Power: 18	Hi Bengy, It depends on your system. In particular, the mesh density in relation to the physics you want to resolve (e.g. eddy size) and possible wall effects as in e.g. multiphase flows. So, in answer to your question, possibly yes, depending on the type and scale of physics solved for. __________________ Regards, Gijs

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April 6, 2011, 06:55		#3
bengy New Member Join Date: Jul 2010 Posts: 29 Rep Power: 15	Hi, Yes, I know that mesh size and concentrate of this mesh are one of the most important things in whole simulation I just wanted know what about the domain (with steady numbers of mesh cells) Bengy