水科学进展2016，Vol.27Issue(4)：586-593,8.DOI:10.14042/j.cnki.32.1309.2016.04.013
带横隔板圆柱绕流特性数值模拟
Numerical simulation of the characteristics of flow past circular cylinder with splitter plate
摘要
Abstract
A multistep characteristic⁃based operator⁃splitting finite element method is proposed to determine the effects of adding a splitter plate at the back of a cylinder on the characteristics of a flow past a circular cylinder. In each time step, the N⁃S equations are split into diffusive and convective parts. For the convective part, temporal dis⁃cretization is performed by the characteristic Galerkin method with a multistep technique. Results of the present model are in good agreement with previously published data. Thus, the present model is competitive in solving incompressible viscous flows in terms of accuracy and efficiency. Furthermore, the flow past a circular cylinder with a splitter plate was simulated by the present model. The flow fields and pressure on the cylinder surface with and without a splitter plate were compared. Findings indicated that the plate can suppress vortex shedding, increase the pressure on the lee⁃ward of the cylinder, and reduce the pressure difference between the upper and lower surfaces.关键词
多步格式/有限元/方腔流/圆柱绕流/横隔板Key words
multistep-scheme/finite element method/driven cavity flow/flow past a circular cylinder/splitter plate分类
建筑与水利引用本文复制引用
水庆象,王大国,王伟..带横隔板圆柱绕流特性数值模拟[J].水科学进展,2016,27(4):586-593,8.基金项目
国家自然科学基金资助项目（51349011）；四川省教育厅科研项目（16CZ0013） The study is financially supported by the National Natural Science Foundation of China （ No．51349011）． （）
