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Forum: OpenFOAM Running, Solving & CFD

August 6, 2011, 06:11

Replies: 9

modify laplacian: div(k*grad(a*u))

Views: 1,786

Posted By gunnar2

But I need the implicit (fvm::laplacian), not the...

But I need the implicit (fvm::laplacian), not the explicit (fvc::laplacian) term.

If there is no such term, it should be possible to use something like fvm::laplacian(k,u)*diag(alpha) for...

Forum: OpenFOAM Running, Solving & CFD

August 5, 2011, 11:42

Replies: 9

modify laplacian: div(k*grad(a*u))

Views: 1,786

Posted By gunnar2

modify laplacian: div(k*grad(a*u))

Hello,
I am trying to solve a type of heat equation:

\partial u/ \partial t + \nabla\cdot\mathbf{v} u - \nabla\cdot k \nabla \alpha u =0

The difference to the standard heat equation is the...

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