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题名: Development of a dispersion-relation-preserving upwinding scheme for incompressible Navier-Stokes equations on non-staggered grids
作者: P. H. Chiu
W. H. Sheu
R. K. Lin
贡献者: 國立臺灣海洋大學:輪機工程學系
日期: 2005-06
上传时间: 2018-09-07T02:48:15Z
出版者: Numerical Heat Transfer. Part B: Fundamentals
摘要: Abstract: In this article a scheme which preserves the dispersion relation for convective terms is proposed for solving the two-dimensional incompressible Navier–Stokes equations on nonstaggered grids. For the sake of computational efficiency, the splitting methods of Adams-Bashforth and Adams-Moulton are employed in the predictor and corrector steps, respectively, to render second-order temporal accuracy. For the sake of convective stability and dispersive accuracy, the linearized convective terms present in the predictor and corrector steps at different time steps are approximated by a dispersion relation-preserving (DRP) scheme. The DRP upwinding scheme developed within the 13-point stencil framework is rigorously studied by virtue of dispersion and Fourier stability analyses. To validate the proposed method, we investigate several problems that are amenable to exact solutions. Results with good rates of convergence are obtained for both scalar and Navier–Stokes problems.
關聯: 48(6) pp.543-569
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/50007
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