Three-dimensional supersonic flow around double compression ramp with finite span

被引：2
|
作者：
Lee, H. S. [1 ]
Lee, J. H. [1 ]
Park, G. [2 ]
Park, S. H. [1 ]
Byun, Y. H. [1 ]
机构：
[1] Konkuk Univ, Dept Aerosp Informat Engn, Seoul, South Korea
[2] Korea Adv Inst Sci & Technol, Div Aerosp Engn, Daejeon, South Korea
来源：
SHOCK WAVES | 2017年 / 27卷 / 01期
基金：
新加坡国家研究基金会;
关键词：
Computational fluid dynamics; Supersonic flow; Shock wave/boundary layer interaction; Double-compression ramp; TURBULENCE MODELS; LAYER INTERACTION; SIMULATION; INLET;
D O I：
10.1007/s00193-016-0630-7
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
Three-dimensional flows of Mach number 3 around a double-compression ramp with finite span have been investigated numerically. Shadowgraph visualisation images obtained in a supersonic wind tunnel are used for comparison. A three-dimensional Reynolds-averaged Navier-Stokes solver was used to obtain steady numerical solutions. Two-dimensional numerical results are also compared. Four different cases were studied: two different second ramp angles of and in configurations with and without sidewalls, respectively. Results showed that there is a leakage of mass and momentum fluxes heading outwards in the spanwise direction for three-dimensional cases without sidewalls. The leakage changed the flow characteristics of the shock-induced boundary layer and resulted in the discrepancy between the experimental data and two-dimensional numerical results. It is found that suppressing the flow leakage by attaching the sidewalls enhances the two-dimensionality of the experimental data for the double-compression ramp flow.
引用
收藏
页码：69 / 77
页数：9
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