Force control of a square cylinder in cross flow

摘要：

A numerical study on reduction of fluid forces acting on a square cylinder in a two-dimensional cross flow is presented in this paper. In order to control the flow around a square cylinder, two small adjunctive cylinders are symmetrically inserted in the near wake of the main cylinder. The incompressible N-S equations are solved at low Reynolds Numbers of 200. The computational results show that the small adjunctive cylinders inserted in the separated shear layer of the main square cylinder can cause an obvious variation of the vortex pattern and changing of the fluid forces acting on the main cylinder. At some appropriate inserting positions, fluctuating lift acting on the main cylinder can be observably suppressed.

关键词： fluid forces adjunctive cylinders shear layer fluctuating lift

作者: Z.D.Su Y.Liu H.J.Zhang D.F.Zhang

作者单位: College of Metrological Technology and Engineering, China Jiliang University, Hangzhou, 310018, China

会议类型: 国际会议

会议名称: The Fifth International Conference on Fluid Mechanics(第五届国际流体力学会议)

会议地点: 上海

会议语种:英文

在线出版日期: 2007-08-15（万方平台首次上网日期，不代表论文的发表时间）