Influence of geometric parameters on the flow drag of a streamlined body of revolution
This paper demonstrates the influence of geometric parameter variation of a streamlined body on the flow drag performance. A streamlined body with an outline of elliptic forebody and parabolic afterbody is numerically investigated. The effects of geometric parameters including the ratio of maximum section diameter to body length D/L, and the ratio of forebody length to total length LE/L on the flow drag are revealed by studying the pressure distribution on the body edge. The results show that, for D/L ranging from 0.1 to 0.25, the smaller D/L is, the better the flow drag performance is, for LE/L ranging from 0.2 to 0.9, there is a turning point on the flow drag with the value of LE/L approximates to 0.7. The findings in this work would benefit the selection of geometric parameters to reduce drag in underwater vehicle design.
Weishan Chen Dan Xia Junkao Liu Ranran Wang
School of Mechatronics Engineering Harbin Institute of Technology No.92, West Da-Zhi Street, Harbin, 150001, CHINA
国际会议
成都
英文
1-4
2010-06-18(万方平台首次上网日期,不代表论文的发表时间)