自由剪切层中大尺度相干结构三维亚谐扰动波的研究  

Secodary Instability of the Three Dimension Subharmonic Disturbances in Free Mixing-layer

作　　者：陆昌根[1] 顾平道[1] 李志忠 

机构地区：[1]江苏石油化工学院能源工程系,常州213016 [2]上海金山石化股份有限公司,上海200540

出　　处：《江苏石油化工学院学报》1997年第2期6-10,24,共6页Journal of Jiangsu Institute of Petrochemical Technology

基　　金：江苏省自然科学基金

摘　　要：用空间模式讨论了自由混合层三维亚谐扰动的二次稳定性。结果表明三维亚谐扰动对展向波致有很强的选择机理，并且三维亚诺扰动波有最大空间增长率。In this paper, secondary instability of subharmonic disturbances in Free Mixing -layer is studied with spatial mode. Results illustrate that the subharmonic disturbances have an extreme election mechanism of spanwise wave number, and a wave of the 3-D subharmonic disturbemces has the lergest spatial growth rate.

关 键 词：自由混合层 二次稳定性 亚谐扰动 自由剪切层 

分 类 号：O357.5[理学—流体力学]