Investigation on Spanwise Wall Oscillation in Turbulent Channel Flow Based on Reynolds Stress Model (RSM)

摘要：

　　A variety of studies have showed that wall oscillation contributes much to skin-friction drag reduction,however,the mechanism of drag reduction has not been fully understood.In this paper,one of the common wall-bounded turbulent flows to simulate is the fully developed turbulent flow in a plane channel.Based on the RSM,the numerical simulation results of the distribution among different components of Reynolds stresses are obtained under the action of oscillation or not,respectively.It is found that wall oscillation suppresses turbulent intensity and leads to skin-friction drag reduction,because of the significant role played by the pressure-strain term.

关键词： Reynolds stress model(RSM) wall oscillation turbulent channel flow Reynolds stress turbulent drag reduction

作者: DUAN Dehao ZHANG Jinbai GAO Zhenxun

作者单位: National Laboratory of Computational Fluid Dynamics,Beihang University,Beijing 100191,China

会议类型: 国际会议

会议名称: 2014 Asia-Pacific International Symposium on Aerospace Technology(2014亚太航空航天技术学术会议)

会议地点: 上海

会议语种:英文

页码: 1-6

在线出版日期: 2014-09-24（万方平台首次上网日期，不代表论文的发表时间）