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Forum: OpenFOAM Programming & Development

August 11, 2011, 16:40

Replies: 5

implicit div(k*grad(a*u))

Views: 1,364

Posted By gunnar2

anybody any idea? or at least a reason, why...

anybody any idea?

or at least a reason, why there cannot be an implicit scheme for \nabla\cdot k\nabla\alpha u?

Thank you
Gunnar

Forum: OpenFOAM Programming & Development

August 9, 2011, 14:22

Replies: 5

implicit div(k*grad(a*u))

Views: 1,364

Posted By gunnar2

Is it really not possible to build a diagonal...

Is it really not possible to build a diagonal matrix?

Another possibility can be first to construct

fvMatrix M=fvm::laplacian(k,u)

In the next step I would have to multiply each row i of the...

Forum: OpenFOAM Programming & Development

August 8, 2011, 13:45

Replies: 5

implicit div(k*grad(a*u))

Views: 1,364

Posted By gunnar2

implicit div(k*grad(a*u))

Hello,
I have asked in "Running / Solving / CFD (http://www.cfd-online.com/Forums/openfoam-solving/91282-modify-laplacian-div-k-grad-u.html)" before, but now this seems to be a programming question....

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