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reflection boundary condition

Sat, 2008-10-04 20:46 - Wei Wang
reflection boundary in finite difference method

I am planning on using finite difference coding to solve a wave equation. The domain is a rectangular domian with wave reflection on the boundaries. Does anyone know how to set the reflection boundary condition?

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Murthy N. Guddati's picture

Submitted by Murthy N. Guddati on Mon, 2008-10-06 23:36.

Hi Wei,

You may want to look at our recent work on absorbing boundary conditions for FEM: http://www4.ncsu.edu/~mnguddat/Publications/CFABC_Polygon.pdf

A simple alteration of the boundary condition should provide an effective ABC for FDM. Hope this helps.

Cheers,

Murthy 

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Submitted by Wei Wang on Wed, 2008-10-08 22:56.

Thanks Dr. Guddati. I would read it carefully.

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