求解流固耦合问题的一种四步分裂有限元算法OA北大核心CSCDCSTPCD
A Four-Step Fractional Finite Element Method for Fluid-Structure Interaction
基于arbitrary Lagrangian Eulerian (ALE)有限元方法,发展了一种求解流固耦合问题的弱耦合算法.将半隐式四步分裂有限元格式推广至求解ALE描述下的Navier-Stokes (N-S)方程,并在动量方程中引入迎风流线(streamline upwind/Petrov-Galerkin,SUPG)稳定项以消除对流引发的速度场数值振荡；采用Newmark-β法对结构方程进行时间离散；运用经典的Galerkin有限元法求解…查看全部>>
A loosely-coupled algorithm for fluid-structure interaction based on arbitrary Lagrangian Euierian(ALE) finite element method was proposed.The semi-implicit four-step fractional finite element method was extended to solve Navier-Stokes equations of ALE description,where the streamline upwind/Petrov-Galerkin (SUPG) stabilization term was added to the momentum equation to eliminate numerical oscillations of the velocity field.The temporal integration of the eq…查看全部>>
王华坤;洪国军;杨闻宇;喻国良
上海交通大学船舶海洋与建筑工程学院,上海200240上海交通大学船舶海洋与建筑工程学院,上海200240中交上海航道勘察设计研究院有限公司,上海200120上海交通大学船舶海洋与建筑工程学院,上海200240
数理科学
ALE有限元流固耦合半隐式四步分裂修正Laplace方程网格更新
ALE finite element method fluid-structure interaction semi-implicit four-step fraction modified Laplace equation mesh updating
《应用数学和力学》 2013 (7)
704-713,10
国家高技术研究发展计划项目(2007AA09Z312)
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