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How to implement anisotropic diffusion coefficient

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Old   March 19, 2010, 10:36
Default How to implement anisotropic diffusion coefficient
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Ben K
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Hi, can somebody point me to an example of how to implement an anisotropic diffusion coefficient? For example, on a 2D geometry, I want the x-direction diffusion coefficient to be smaller than the y-direction diffusion coefficient.
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Old   March 25, 2010, 22:41
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Alberto Passalacqua
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Quote:
Originally Posted by benk View Post
Hi, can somebody point me to an example of how to implement an anisotropic diffusion coefficient? For example, on a 2D geometry, I want the x-direction diffusion coefficient to be smaller than the y-direction diffusion coefficient.
You can pass a tensor as "coefficient" to the laplacian.

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