Evolution of nonlinear processes in a hypersonic boundary layer on a sharp cone

被引：50
|
作者：
Bountin, D. [1 ]
Shiplyuk, A. [1 ]
Maslov, A. [1 ]
机构：
[1] Russian Acad Sci, Khristianovich Inst Theoret & Appl Mech, Novosibirsk 630090, Russia
来源：
JOURNAL OF FLUID MECHANICS | 2008年 / 611卷 / 427-442期
基金：
俄罗斯基础研究基金会;
关键词：
D O I：
10.1017/S0022112008003030
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
Nonlinear processes in a hypersonic boundary layer on a sharp cone are considered using, the bicoherence method. The experiments are performed for a Mach number M-x = 5.95 with introduction of artificial wave packets at the frequency of the second mode. It is shown that the basic mechanism of nonlinear interaction at the location of the maximum r.m.s. voltage fluctuation is the subharmonic resonance; all nonlinear interactions in the maximum r.m.s. voltage fluctuation layer are related to the second mode of disturbances; nonlinear processes above and below that layer are much more intense than those in it. The effect of artificial disturbances on nonlinear interaction's in the boundary layer is shown to be insignificant.
引用
收藏
页码：427 / 442
页数：16
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