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    ARTICLE

    Darcy-Stokes Equations with Finite Difference and Natural Boundary Element Coupling Method

    Peng Weihong1, Cao Guohua2, Dongzhengzhu1, Li Shuncai3

    CMES-Computer Modeling in Engineering & Sciences, Vol.75, No.3&4, pp. 173-188, 2011, DOI:10.3970/cmes.2011.075.173

    Abstract Numerical method is applied to investigate the Darcy-Stokes equations, which is governing the steady incompressible Stokes flow past a circular cavity in a porous medium. The free fluid flow is modeled by the incompressible Stokes equations, and the flow in the porous medium is imposed by Darcy equations. Based on domain decomposition method with D-N alternating iteration algorithm, the coupling method of finite difference method and natural boundary element method is studied for the coupling Darcy-Stokes equations under a certain pressure difference. The numerical results indicate that the finite difference and natural boundary element coupling More >

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