A Numerical Investigation on Reduction of Fluid Force on Three Dimensional Circular Cylinder with Tripping Rods
The effects of tripping rods on characteristics and fluid forces acting on a single cylinder was threedimensional numerical studied in a low laminal flow at a Reynolds number of 200 and a subcritical stream at a Reynolds number of 5.5X104. The angular position of the tripping rods was varied from 20 to 60.The results reveal that there exits an optimum position of tripping rod for reducing fluid forces. This optimum angular position was found to be 40° for Re=200 and 30° for Re=5.5X104. At this optimum angle, the steady drag, fluctuating drag and fluctuating lift forces acting on the cylinder are reduced by 21％, 32％, and 28％ for Re=200 and 36％, 44％, 76％ for Re=5.5X104.
Tripping rods Three dimensional Drag force reduction
Chaoying Zhou Wenying Ji Xingwei Zhang
Department of Mechanical Engineering and Automation , Harbin Institute of Technology Shenzhen Graduate School, Shenzhen 518055,Peoples Republic of China
国际会议
上海
英文
139-142
2011-10-21（万方平台首次上网日期，不代表论文的发表时间）