[1]李军,常见虎,周长省,等.推力矢量燃气舵三维气-固两相流的数值分析[J].南京理工大学学报(自然科学版),2008,(05):565-569.
 LI Jun,CHANG Jian-hu,ZHOU Chang-sheng,et al.Numerical Analysis of 3-D Gas-solid Two-phase Flow Around Thrust Vector Jet Vanes[J].Journal of Nanjing University of Science and Technology,2008,(05):565-569.
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推力矢量燃气舵三维气-固两相流的数值分析
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《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

卷:
期数:
2008年05期
页码:
565-569
栏目:
出版日期:
2008-10-30

文章信息/Info

Title:
Numerical Analysis of 3-D Gas-solid Two-phase Flow Around Thrust Vector Jet Vanes
作者:
李军;常见虎;周长省;高豫强;
1. 南京理工大学机械工程学院, 江苏南京210094; 2. 空空导弹研究院, 河南洛阳471000
Author(s):
LI Jun1CHANG Jian-hu1ZHOU Chang-sheng1GAO Yu-qiang2
1.School of Mechanical Engineering,NUST,Nanjing 210094,China;2.China Airborne Missile Academy,Luoyang 471000,China
关键词:
燃气舵 气-固两相流 固体颗粒 温度场 压力场
Keywords:
jet vanes gas-solid two-phase flows solid particles temperature contours pressure contours
分类号:
V411.4
摘要:
该文采用高雷诺数下的RNG k-ε湍流模型和欧拉-拉格朗日两相流模型,分析了推力矢量发动机燃气舵气-固两相绕流流动,模拟了燃气舵表面的温度、压力等参数的分布,得到了燃气舵升力和阻力随舵偏角的变化曲线。将模拟结果与纯气相状态下燃气舵的数值仿真结果进行比较,结果表明:与纯气相相比,当舵偏角小于25°时,含固体颗粒的两相流的升力增大,阻力没有变化;舵偏角大于25°时,两相流的升力和阻力均小于纯气相流。研究还表明,颗粒的加入对燃气舵表面的压力场影响不大,但对温度场影响较大,造成燃气舵整体温度升高。
Abstract:
According to thrust vector control motor states,a RNG k-ε turbulence model with large Reynolds number and Euler-Lagrange two-phase model are adopted to study the gas-solid two-phase flow around jet vane.The temperature and pressure contours on jet vane surface are numerically simulated and presented.The curves of lift force and resistance force vs rotation angles are given.Compared with the pure gas phase,when jet vane rotation angles are less than 25°,the lift forces increase and the resistance forces are unchanged for the gas-solid two-phase flow.When rotation angles are larger than 25°,the lift forces and resistance forces decrease.The results show that the solid particles has little influence on pressure distribution on jet vane,but has great influence on the temperature distribution in two-phase flow,so that the temperature of the whole jet vane rises in two-phase flow.

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备注/Memo

备注/Memo:
基金项目: 航空科学基金( 20070112007, 20070159001) ?? 作者简介: 李军( 1965- ), 男, 河南平顶山人, 副教授, 博士, 主要研究方向: 火箭导弹发射技术, 燃气射流理论与 试验, E_mail: lijun ly@ mail. njust. edu. cn。
更新日期/Last Update: 2012-12-19