A New Boundary Scheme for BGK Model

Wang Peng; Zhang Shiqing

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A New Boundary Scheme for BGK Model

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arxiv 1204.3228 v1 pith:CIWZMQRW submitted 2012-04-15 math.NA cs.NA

A New Boundary Scheme for BGK Model

Wang Peng , Zhang Shiqing This is my paper

classification math.NA cs.NA

keywords accuracyboundarymodelnumericalschemeproposedschemessolutions

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In this paper, we proposed a new boundary condition scheme for the BGK model which has second order accuracy and can be developed to higher accuracy. Numerical tests show that the numerical solutions of the BGK model applied to the new boundary scheme have great agreement with analytical solutions. It is also found that the numerical accuracy of the present schemes is much better than that of the original extrapolation schemes proposed by Guo et al at small grid.

A New Boundary Scheme for BGK Model

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