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Forum: Main CFD Forum

April 10, 2012, 10:43

Replies: 39

Lambda-2 criterion

Views: 42,963

Posted By saeedi

Good! So much thanks to both of you

Good!
So much thanks to both of you

Forum: Main CFD Forum

April 10, 2012, 08:31

Replies: 39

Lambda-2 criterion

Views: 42,963

Posted By saeedi

Ok. Got it. Or we can provide the variation of...

Ok. Got it. Or we can provide the variation of the same contours over time (like animation) and qualitatively see which ones remains. This will show us coherent structures qualitatively. right?

Forum: Main CFD Forum

April 10, 2012, 08:14

Replies: 39

Lambda-2 criterion

Views: 42,963

Posted By saeedi

Hi Paolo and Flippo, Great and clear...

Hi Paolo and Flippo,

Great and clear answers. I almost got it. Thank you so much.

one question: Paolo, so the above matrix is -1 times pressure hessian ?
I mean in theory we can also...

Forum: Main CFD Forum

April 9, 2012, 13:16

Replies: 39

Lambda-2 criterion

Views: 42,963

Posted By saeedi

Lambda-2 criterion

Hi there,

Does any one know how to calculate Lambda-2 criterion?
I read the original paper by Adrian but I could not fully get it.
I know how to calculate Q-criterion and I have done it for...

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