A numerical investigation of the evolution of 2-D disturbances in hypersonic boundary layers and the effect on the flow structure due to the existence of shocklets

被引：5

作者：

Cao, W

Zhou, H ^{[1
]}

机构：

[1] Tianjin Univ, Dept Mech, Tianjin 300072, Peoples R China

[2] Nankai & Tianjin Univ, Liu Hui Ctr Appl Math, Tianjin 300072, Peoples R China

来源：

SCIENCE IN CHINA SERIES G-PHYSICS MECHANICS & ASTRONOMY | 2004年 / 47卷 / 02期

关键词：

hypersonic boundary layers; T-S wave; shocklet; direct numerical simulation;

D O I：

10.1360/03yw0230

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The evolution of 2-D disturbances in hypersonic boundary layer with Mach number 6,8, and 10 was investigated numerically by three different numerical schemes. At the entrance, second mode T-S waves with different amplitudes were introduced, and the relation between the Mach number and the amplitude of the disturbance when shocklets started to appear was investigated. By comparing the disturbance velocity profiles with those provided by linear stability theory, the effects of shocklets on flow structures were also investigated.

引用

页码：244 / 255

页数：12

共 7 条

[1] Existence of shocklets in a two-dimensional supersonic mixing layer and its influence on the flow structure [J].

Cao, W ;

Zhou, H .

SCIENCE IN CHINA SERIES A-MATHEMATICS PHYSICS ASTRONOMY, 2001, 44 (09) :1182-1188

[2]

FU DX, 1996, SCI CHINA SER A, V26, P659

[3]

Huang ZF, 2004, APPL MATH MECH-ENGL, V25, P1

[4] BOUNDARY-CONDITIONS FOR DIRECT SIMULATIONS OF COMPRESSIBLE VISCOUS FLOWS [J].

POINSOT, TJ ;

LELE, SK .

JOURNAL OF COMPUTATIONAL PHYSICS, 1992, 101 (01) :104-129

[5]

Yuan XJ, 2000, APPL MATH MECH-ENGL, V21, P489

[6] Further improvement of weakly nonlinear theory of hydrodynamic stability [J].

Zhou Heng ;

K. Fujimura .

Science in China Series A: Mathematics, 1998, 41 (1) :84-92

[7]

ZHOU H, 2000, ACTA AERODYNAMICA SI, V18, P52

← 1 →