ON THE DYNAMICS OF A TRANSITIONAL BOUNDARY LAYER
作者单位:State Key Laboratory for Turbulence ResearchPeking University
会议名称:《中国力学学会学术大会'2005》
会议日期:2005年
学科分类:080704[工学-流体机械及工程] 080103[工学-流体力学] 08[工学] 0807[工学-动力工程及工程热物理] 0801[工学-力学(可授工学、理学学位)]
摘 要:A model of the dynamic physical processes that occur in a transitional boundary layer flow is described . The solitons/like coherent structures (SCS), the closed vortex, the secondary closed vortex and the chain of ring-like vortices are postulated to be the basic flow structures of the transitional boundary layer as well as the turbulent boundary layer. I is argued that the central features of the transitional and developed turbulent boundary layer flows can be explained in terms of how the series vortices interact with each other, and with the