turbulet flow

firatwsen · January 18, 2012, 17:22

Hi

What happens if I do not mesh the boundary with inflation ? Does it give wrong results?

dynamics · January 19, 2012, 06:33

What you mean by inflation?

LuckyTran · January 19, 2012, 10:22

Quote:

Originally Posted by firatwsen

Hi

What happens if I do not mesh the boundary with inflation ? Does it give wrong results?

Inflation is just another term for grid stretching. Mesh cell sizes should blend or grow gradually between small and large cells (otherwise errors can be introduced). There should not be a large sudden change in cell size. Without inflation, it is unlikely that you can achieve the gradual growth between small cells near boundaries and large cells far from boundaries.

If you do not use inflation, then your cell sizes should be uniformly small (no changes in cell size anywhere), this will produce a high quality mesh but the resultant mesh will have a very high cell count.

firatwsen · January 20, 2012, 07:11

thanks a lot I got the answer.

January 18, 2012, 17:22	turbulet flow	#1
firatwsen New Member BaBa-Firat Join Date: May 2011 Posts: 11 Rep Power: 14	Hi What happens if I do not mesh the boundary with inflation ? Does it give wrong results?

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January 19, 2012, 06:33		#2
dynamics New Member Join Date: Mar 2011 Posts: 7 Rep Power: 15	What you mean by inflation?

January 20, 2012, 07:11		#4
firatwsen New Member BaBa-Firat Join Date: May 2011 Posts: 11 Rep Power: 14	thanks a lot I got the answer.