物理学报2011，Vol.60Issue(9)：457-462,6.
转捩边界层中流向条纹的新特性
New properties of streamwise streaks in transitional boundary layers
摘要
Abstract
Based on detailed results of direct numerical simulation with high order accuracy and resolution at the late-stages of the transitional boundary layer, new properties are found, such as discontinuous event in the evolution of low-speed streamwise streaks and the appearance called high speed spots in the development of high-speed streamwise streaks. In the present paper, the complex vortex structures and the ejection-sweep phenomenon in the transition process of boundary layers are analyzed thoroughly, and the new properties of high-speed /low-speed streamwise streaks are confirmed to be closely relatcd to the evolution process of vortex structures in the flow-field.关键词
流向条纹/边界层/转捩/直接数值模拟Key words
streamwise streaks/boundary layers/transition/direct numerical simulation分类
数理科学引用本文复制引用
陈林,唐登斌,Chaoqun Liu..转捩边界层中流向条纹的新特性[J].物理学报,2011,60(9):457-462,6.基金项目
国家自然科学基金 （）
教育部博士学科点基金 （）
AFOSR（GrantNo.FA9550-08-1-0201）资助的课题 （）
