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[1]吴晋湘,刘 敏,田 亮,等.三维特性的斜激波在受限通道中发展的仿真模拟[J].燃烧科学与技术,2018,(03):193-198.[doi:10.11715/rskxjs.R201704069]
 Wu Jinxiang,Liu Min,Tian Liang,et al.Simulation of the Behavior of Three-Dimensional Oblique Shock Development in a Restricted Channel[J].Journal of Combustion Science and Technology,2018,(03):193-198.[doi:10.11715/rskxjs.R201704069]
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三维特性的斜激波在受限通道中发展的仿真模拟()
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《燃烧科学与技术》[ISSN:1006-8740/CN:12-1240/TK]

卷:
期数:
2018年03
页码:
193-198
栏目:
出版日期:
2018-06-15

文章信息/Info

Title:
Simulation of the Behavior of Three-Dimensional Oblique Shock Development in a Restricted Channel
作者:
吴晋湘刘 敏田 亮闫文涛邱 萍
河北工业大学能源与环境工程学院,天津 300401
Author(s):
Wu JinxiangLiu MinTian LiangYan WentaoQiu Ping
College of Energy and Environmental Engineering,Hebei University of Technology,Tianjin 300401,China
关键词:
斜激波膨胀波斜劈激波反射
Keywords:
oblique shockexpansive wavewedgeshock reflection
分类号:
V411.8
DOI:
10.11715/rskxjs.R201704069
文献标志码:
A
摘要:
为了深入了解超燃冲压发动机中三维斜激波对燃烧室内流动产生的影响,应用数值模拟的方法,利用斜劈结构来模拟开式凹腔剪切层凸起,采用不同形状的斜劈结构,分析其在超声速流场中产生的三维斜激波以及激波与壁面的相互作用规律.斜劈展向与气流方向成45°角时,激波和膨胀波结构呈现三维特性,当激波与Z=20,mm 壁面相交成锐角时会产生马赫反射;而激波与Z=0,mm 壁面相交成钝角则会以叠加膨胀波的形式减弱激波,并且使激波面的法线方向与壁面的法线方向垂直.对于Λ型斜劈结构,产生的两个斜激波相交后会在相交处形成马赫反射,马赫反射激波面的宽度随高度增加而增加,最终达到侧壁面.
Abstract:
In order to understand the influence of three-dimensional oblique shock on airflow,the numericalsimulation method is used to simulate the embossment of the shear lay on open cavity.Different wedges were investigated to analyze the structure of 3-D oblique shock wave and the rule of the interaction between oblique shock wave and wall.When the shock wave and the Z=20,mm wall intersect into acute angle,the Mach reflection happens;when the intersection of the shock wave and the Z=0,mm wall becomes an obtuse angle,the shock wave will be attenuates in the form of superimposed expansion wave,which makes the normal direction of the shock wave plane perpendicular to that of the wall.For the Λ shaped wedge,Mach reflection happens at the position of two oblique shock waves.With the increase of height,the width of the Mach reflection wave surface increases and eventually reaches the side wall.

备注/Memo

备注/Memo:
收稿日期:2017-04-30. 作者简介:吴晋湘(1957— ),男,博士,教授. 通讯作者:吴晋湘,wujnxd@163.com.
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