方柱和双方柱绕流的数值模拟  

Numerical Simulation of Fluid Flow Around A Single Square-Cylinder and A Couple of Square-Cylinders

作　　者：穆维贤 赖国璋[1] 

机构地区：[1]大连理工大学力学研究所

出　　处：《水动力学研究与进展（A辑）》1990年第4期76-80,共5页Chinese Journal of Hydrodynamics

基　　金：国家自然科学基金

摘　　要：通过采用时间分裂步势函数有限元法,求解非定常二维不可压Navier-Stokes方程。对绕单个方柱和串列双方柱的绕流问题进行了数值模拟。给出了随时间变化柱体周围的流速分布,柱体的受力情况。本文计算结果与文献[1]的计算结果及[2]的部分实验结果趋势相符。A 2-D unsteady incompressible fluid flow governed fay Navier-Stokes equation is computed by means of split-time potential function FEM. Numerical simulations is carried out on the diffraction around a single square-cylinder and a couple of square-cylinders laid in tandem. The velocity field in the vicinity of the obstacle and its evolution, as well as the fluid forces acting on the obstacle are investigated. Computational results are in good agreement with the results of [1] and parts of experimental data given by [2].

关 键 词：方柱 绕流 有限元法 N-S方程 

分 类 号：TU312.1[建筑科学—结构工程]