This work develops a new mixed finite element method for arbitrary convex quadrilateral meshes to solve the Darcy-Stokes problem.We propose an H（div）-conforming element which based on a spline element over the crisscross subdivision of a quadrilateral to approximate the velocity.And the pressure is approximated by piecewise constant.Then we give the convergence analysis of our element and construct a new discrete de Rham complex.Moreover,an explicit local basis representation is provided.Lastly,... 

【文章來源】：高等學校計算數(shù)學學報. 2020,42(04)北大核心CSCD

【文章頁數(shù)】：20 頁


本文編號：3175322