Characteristics of spherical shock wave and circular pulse jet generated by discharge of propagating shock wave at open end of tube

被引：0

作者：

Tsukasa Irie

Tsuyoshi Yasunobu

Hideo Kashimura

Toshiaki Setoguchi

Kazuyasu Matsuo

机构：

[1] Kitakyushu National College of Technology,Department of Mechanical Engineering

[2] Kitakyushu National College of Technology,Department of Control and Information Systems Engineering

[3] Saga University,Department of Mechanical Engineering

[4] Univ. of Kitakyushu,Department of Mechanical Systems and Environmental Engineering

来源：

Journal of Thermal Science | 2003年 / 12卷

关键词：

shock wave; impulsive wave; numerical analysis; spherical shock wave; TVD method;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

When the shock wave propagating in the straight circular tube reaches at the open end, the impulsive wave is generated by the emission of a shock wave from an open end, and unsteady pulse jet is formed near the open end behind the impulsive wave under the specific condition. The pulse jet transits to spherical shock wave with the increase in the strength of shock wave. The strength is dependent on the Mach number of shock wave, which attenuates by propagation distance from the open end. In this study, the mechanism of generating the unsteady pulse jet, the characteristics of the pressure distribution in the flow field and the emission of shock wave from straight circular tube which has the infinite flange at open end are analyzed numerically by the TVD method. Strength of spherical shock wave, relation of shock wave Mach number, distance decay of spherical shock wave and directional characteristics are clarified.

引用

页码：245 / 249

页数：4

共 12 条

[1]

Eidelman S(1992)A Propulsion Device Driven by Reflected Shock Waves Shock Waves II 1283-1288

[2]

Ruppert K A(1984)The Effect of Multiple Pressure Pulses Cleaning of Filter Bags Ger. Chem. Eng. 7 345-349

[3]

Abe A(1990)Numerical Simulation and Density Measurement of a Shock Wave Discharged from the Open End of a Tube JSME Int. J. 33 216-223

[4]

Takayama K(1990)Experimental and Numerical Analysis of Circular Pulse Jets J. Fluid Mech. 392 129-153

[5]

Ishii R(1999)A Study of Pulsatile Jet Discharged from Pipe End J. of Visualization 1 261-269

[6]

Endo M(1977)A Numerical Study of a Converging Cylindrical Shock J. Fluid Mech. 83 785-794

[7]

Iwamoto J(1966)The Structure and Utilization of Supersonic Free Jets in Low Density Wind Tunnels Proc. 4th Int. Symp. Rarefied Gas Dyn. 2 84-105

[8]

Sod G A(1981)Effects of Axisymmetric Sonic Nozzle Geometry on Mach Disk Characteristics AIAA J. 19 121-122

[9]

Ashkenas H(2000)General Attenuation Laws for Spherical Shock Waves in Pure and Dusty Gases AIAA J. 39 969-971

[10]

Sherman F S(undefined)undefined undefined undefined undefined-undefined

← 1 2 →