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NONLINEAR GALERKIN METHOD FOR THE EXTERIORNONSTATIONARY NAVIER-STOKES EQUATIONS
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作者 HE Yin-nian(何银年) +1 位作者 LI kai-tai() 《Applied Mathematics and Mechanics(English Edition)》 SCIE EI 2002年第11期1282-1291,共10页
A new algorithm combining nonlinear Galerkin method and coupling method of finite element and boundary element is introduced to solve the exterior nonstationary Navier-Stokes equations. The regularity of the coupling ... A new algorithm combining nonlinear Galerkin method and coupling method of finite element and boundary element is introduced to solve the exterior nonstationary Navier-Stokes equations. The regularity of the coupling variational formulation and the convergence of the approximate solution corresponding to the algorithm are proved. If the fine mesh h is chosen as coarse mesh H-square, the nonlinear Galerkin method, nonlinearity is only treated on the coarse grid and linearity is treated on the fine grid. Hence, the new algorithm can save a large amount of computational time. 展开更多
关键词 Boundary element method Convergence of numerical methods Finite element method Galerkin methods Nonlinear equations Variational techniques
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