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Forum: Main CFD Forum

November 16, 2011, 13:11

Replies: 3

Is FASTRAN sensitive to the grid?

Views: 1,218

Posted By cfdnewbie

If the problem itself is unsteady due to high...

If the problem itself is unsteady due to high AOA, then that's the real physics, and your first order is way too dissipative!
Refine the grid, use higher order (4,6,8,....) schemes....

Forum: Main CFD Forum

November 13, 2011, 08:50

Replies: 3

Is FASTRAN sensitive to the grid?

Views: 1,218

Posted By cfdnewbie

I havent used fastran, but what you are...

I havent used fastran, but what you are describing sounds like you changed the discretization from first to second, right? then it's no wonder higher AOA will give you more vortices, and thus...

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