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About the artificial viscous of Roe Scheme

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Old   April 10, 2007, 02:54
Default About the artificial viscous of Roe Scheme
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muta
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Hi all!!

I use Roe scheme to solve the 3D channel flow(Les ,low Mach number with preconditioning).

I find if i use small epson number in artificial viscous term,the flow field will decay.

I think the smaller epson the lower dissipation i have .

Am i right??

But the situation is not what i think.

Could someone give me some suggestions ?

Thank you!!

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