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Forum: Main CFD Forum

August 19, 2011, 02:21

Replies: 6

When to use upwind or central differencing schemes?

Views: 38,486

Posted By quarkz

Thanks andy_ for the additional info. ...

Thanks andy_ for the additional info.

Currently, my flapping foil simulation at Re=10000 converges with central differencing. However, I'm getting non-periodical solution when it's supposed to be...

Forum: Main CFD Forum

August 18, 2011, 03:34

Replies: 6

When to use upwind or central differencing schemes?

Views: 38,486

Posted By quarkz

Thanks leflix for the in depth answer. Just...

Thanks leflix for the in depth answer.

Just to confirm, the key point of the upwind scheme is the local convective velocity. Hence for high Re flow, no matter if the inflow is left to right, or...

Forum: Main CFD Forum

August 16, 2011, 09:26

Replies: 6

When to use upwind or central differencing schemes?

Views: 38,486

Posted By quarkz

When to use upwind or central differencing schemes?

Hi,

I am using central differencing scheme currently.

I read that it is preferable to use an upwind scheme at high Re of 10,000 to ensure convergence.

Is this true?

Also, is upwind...

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