Numerical simulation on gas-liquid two-phase detonation combustion induced by shock wave focusing

YANG Qing; LI Zhi-qiang; DI Ya-chao; XU Huan

doi:10.13224/j.cnki.jasp.2014.08.007

Chinese

您当前的位置：

首页 >

文章列表页 >

Numerical simulation on gas-liquid two-phase detonation combustion induced by shock wave focusing

更新时间：2026-07-07

- Numerical simulation on gas-liquid two-phase detonation combustion induced by shock wave focusing
- Issue 8, (2014)
- 作者机构：
  
  北京航空航天大学能源与动力工程学院航空发动机气动热力国家级重点实验室,北京,100191
- 作者简介：
- 基金信息：
- DOI：10.13224/j.cnki.jasp.2014.08.007
  CLC：
- Published：2014
- 稿件说明：
移动端阅览
杨青, 李志强, 邸亚超, 许欢. 激波聚焦诱导气液两相爆震燃烧的数值模拟[J]. 航空动力学报, 2014, (8): 1802-1809. doi: 10.13224/j.cnki.jasp.2014.08.007

YANG Qing, LI Zhi-qiang, DI Ya-chao, et al. Numerical simulation on gas-liquid two-phase detonation combustion induced by shock wave focusing[J]. 2014, (8).
杨青, 李志强, 邸亚超, 许欢. 激波聚焦诱导气液两相爆震燃烧的数值模拟[J]. 航空动力学报, 2014, (8): 1802-1809. doi: 10.13224/j.cnki.jasp.2014.08.007 DOI：

YANG Qing, LI Zhi-qiang, DI Ya-chao, et al. Numerical simulation on gas-liquid two-phase detonation combustion induced by shock wave focusing[J]. 2014, (8). DOI： 10.13224/j.cnki.jasp.2014.08.007.

摘要

对以激波聚焦和增加障碍物方式诱导煤油-空气气液两相爆震燃烧的过程进行了数值模拟.采用欧拉-拉格朗日方法建立了脉冲爆震发动机（PDE）中气液两相流的喷射、雾化、掺混过程.研究发现环形爆震波在爆震管凹腔内经过反射、汇聚后能够引燃可燃混合物.而在障碍物处，激波的反射和再反射聚焦能够形成高温高压点（2700K，25MPa），产生局部爆炸，有助于形成稳定的脉冲爆震燃烧（波面速度为1900m/s，温度为2950K），有效地缩短由缓燃向爆震转变（DDT）距离至0.45m.

Abstract

Numerical simulation on gas-liquid two-phase detonation combustion of kerosene-air was conducted induced by shock wave focusing and setting obstacles. The numerical model of gas-liquid two-phase flow was established for the fuel injection

atomization and mixing of pulse detonation engine (PDE) by an Eulerian-Lagrangian formulation. Computational results show that the reflection and focusing of the ring shock wave can ignite the combustible mixture inside the capacity of detonation tube. Re-reflection and focusing of the reflecting shock wave could form higher temperature and pressure points (2700K

25MPa) near the obstacles

which can lead to local explosion

further generate stable pulse detonation combustion (velocity of 1900m/s

temperature of 2950K) and shorten the length of deflagration to detonation transition (DDT) to 0.45m effectively.

关键词

Keywords

references

Views

964

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Influence of flow outlet surface shape on detonation initiation via shock wave focusing in cavity

Pulse detonation gas expansion process and evaluation method of energy conversion difficulty degree

Experiment of transient shock wave focusing performance in two-dimensional concave cavity

Impact of depth of deflector on shock wave focusing processes in wedgeshaped cavity

Numerical simulation of shock wave imploding detonation initiation in two-stage pulse detonation engine

Related Author

曾昊

刘圣平

赵坤

何立明

Xiaofeng LI

Junfeng XIAO

Mengqi HU

Wei WANG

Related Institution

空军工程大学航空工程学院

Gas Turbine Technology Department， Xi'an Thermal Power Research Institute Company Limited

中国人民解放军 94710部队

先进航空发动机协同创新中心

空军工程大学航空航天工程学院

AI问答

Postal code：100079
Tel：（010）53879206 Email：tmw@bjxintong.com.cn
Technical support is provided by Beijing Founder electronics co., LTD 京ICP备09082226号-64 京公网安备11010602201714号
It is recommended to read the content of this site in Chrome&IE9+. Please switch to extreme mode in browser 360.
Cookies We use cookies to help provide and enhance our service and tailor content. By continuing, you agree to the use of cookies.

⁰