steady solution on fine mesh

May 30, 2008, 08:48

Hi,

taking a look a different mesh sizes, it might happen, that on the finest grid, there does not exist a steady solution anymore. Is it just due to the better resolution or is there any other reason?

Flo

May 30, 2008, 11:20

It might be due to the increased resolution providing less numerical dissipation and allowing a correct unsteady flow to appear but it also may due to the iterative solution procedure not being good enough to reach the correct steady state solution.

May 31, 2008, 14:55

Hi Andy,

thanks for the explanation!

Flo

May 30, 2008, 08:48	steady solution on fine mesh	#1
Flo Guest Posts: n/a	Hi, taking a look a different mesh sizes, it might happen, that on the finest grid, there does not exist a steady solution anymore. Is it just due to the better resolution or is there any other reason? Flo

May 30, 2008, 11:20	Re: steady solution on fine mesh	#2
andy Guest Posts: n/a	It might be due to the increased resolution providing less numerical dissipation and allowing a correct unsteady flow to appear but it also may due to the iterative solution procedure not being good enough to reach the correct steady state solution.

May 31, 2008, 14:55	Re: steady solution on fine mesh	#3
Flo Guest Posts: n/a	Hi Andy, thanks for the explanation! Flo

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