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Old   March 6, 2001, 14:04
Default Penalty Parameter
Kai Kang
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Hello all

I have been trying to get a fem code with penalty function for pressure to work. Is there any rule of thumb on the (order of) penalty parameter for general fluid applications...

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Old   March 13, 2001, 03:38
Default Re: Penalty Parameter
Hamid Ghoreishy
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Yes. In many cases you can get very good results if you select a penalty parameter equal to 1E8-1E12. However, the best method is to use a variable penalty parameter as function of viscosity i.e.

penalty parameter=(a Large value eg.1E10)*viscosity

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