图书馆订阅: Guest
Seventh International Symposium on Turbulence and Shear Flow Phenomena
July, 28-31, 2011, Ottawa Convention Centre, Ottawa, Canada

DOI: 10.1615/TSFP7

LOW-ORDER MODEL FOR THE LOW-FREQUENCY UNSTEADINESS IN OBLIQUE-SHOCK/TURBULENT-BOUNDARY-LAYER INTERACTIONS

pages 1-6
DOI: 10.1615/TSFP7.1860
Get accessGet access

摘要

The interaction between a turbulent supersonic boundary layer and an impinging shock wave is investigated numerically and analytically. The reflected-shock low-frequency motions are well captured even when using a narrow simulation domain, supporting the argument that one underlying key mechanism for the low-frequency shock motions is two dimensional. Based on a two-dimensional approach, a stochastic ordinary differential equation for the low-frequency coupling between the reflected shock and the boundary layer is obtained. The system is closed and applied to a wide range of input parameters. It is argued that the low-frequency shock motions are not necessarily a property of the forcing, either from upstream or downstream of the shock, but are simply an intrinsic property of the coupled dynamical system.

Begell Digital Portal Begell 数字图书馆 电子图书 期刊 参考文献及会议录 研究收集 订购及政策 Begell House 联系我们 Language English 中文 Русский Português German French Spain