应用数学和力学2011，Vol.32Issue(4)：428-436,9.DOI:10.3879/j.issn.1000-0887.2011.04.006
转捩边界层中次生流向涡演化的数值研究
Numerical Studies on Evolution of Secondary Streamwise Vortices in Transitional Boundary Layers
摘要
Abstract
The formation and evolution of secondary streamwise vortices in the compressible transitional boundary layers over a flat-plate were studied by means of direct numerical simulation method with high order accuracy and high effective non-reflecting characteristic boundary conditions. The generation and development processes of the secondary streamwise vortices in the complicated transitional boundary flow are clearly analyzed based on the details of numerical results, and its effects on the formation of the ring-like vortex which is vital to the boundary layer transition are explored. A new mechanism forming the ring-like vortex through the mutual affection of the primary and secondary streamwise vortices is expressed.关键词
次生流向涡；边界层；转捩；直接数值模拟Key words
secondary streamwise vortex/ boundary layer/ transition/ direct numerical simulation分类
数理科学引用本文复制引用
陈林,唐登斌,刘超群..转捩边界层中次生流向涡演化的数值研究[J].应用数学和力学,2011,32(4):428-436,9.基金项目
国家自然科学基金资助项目(10772082)；AFOSR资助项目(FA9550-08-1-0201) （10772082）
