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Search: Posts Made By: kalle
Forum: OpenFOAM December 28, 2012, 04:16
Replies: 8
Views: 13,110
Posted By kalle
Hi Hz283, This is a common problem in LES....

Hi Hz283,

This is a common problem in LES. You can see it as if you are trying to solve two problems with different scales in the same simulations, commonly known as a stiff problem. One way to...
Forum: OpenFOAM January 21, 2011, 07:59
Replies: 8
Views: 13,110
Posted By kalle
Stability is one thing, but accuracy another. If...

Stability is one thing, but accuracy another. If you want an accurate LES, you do not only need spatial resolution but also temporal. Therefore, a maxCo of about 0.2 to 0.3 is usually recommended.
...
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