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Forum: OpenFOAM Programming & Development

May 19, 2017, 09:15

Replies: 2

why div(grad) is not equal to laplacian

Views: 1,410

Posted By JasonWang3

I test using icoFoam and 'cavity' in the...

I test using icoFoam and 'cavity' in the tutorial.

Did anyone meet the same problem?

Forum: OpenFOAM Programming & Development

May 19, 2017, 05:57

Replies: 2

why div(grad) is not equal to laplacian

Views: 1,410

Posted By JasonWang3

why div(grad) is not equal to laplacian

Hi all

I did a test about div(grad(Ux)) and laplacian(Ux), but got different results. Why did it happen?

However, div(mesh.Sf()*snGrad(Ux)) is equal to laplacian(Ux).

I am looking for a way...

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