| 固体火箭发动机喷管气固两相流动的数值模拟 |
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| 引用本文： | 于勇,刘淑艳,张世军,张夏.固体火箭发动机喷管气固两相流动的数值模拟[J].航空动力学报,2009,24(4):931-937. |
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| 作者姓名： | 于勇 刘淑艳 张世军 张夏 |
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| 作者单位： | 1.北京理工大学 宇航科学与技术学院, 北京 100081 |
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| 基金项目： | 国家自然科学基金(10702009) |
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| 摘 要： | 对颗粒相采用颗粒轨道模型,气相求解可压缩N-S方程组,计算方法采用显式Runge-Kutta时间推进法与有总变差衰减(TVD)性质的高精度MUSCL-Roe格式;自主开发了曲线坐标系下二维轴对称可压缩N-S方程组的解算器Solve2D,研究了固体火箭发动机喷管中颗粒相对流场的影响以及不同尺寸颗粒运动规律.结果表明:颗粒相对流场的影响主要表现在喷管喉部以及扩张段,和单相流场相比,沿轴线马赫数减小,且颗粒尺寸越小减少得越多;沿轴线气相温度升高,且颗粒尺寸越小温度升高越多;颗粒尺寸越小,无粒子区越小;颗粒越大与收缩段壁面碰撞越剧烈,无粒子区越大.
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| 关 键 词： | 火箭发动机 喷管 两相流 数值模拟 颗粒轨道模型 |
| 收稿时间： | 3/28/2008 3:56:50 PM |
| 修稿时间： | 1/19/2009 4:13:13 PM |
Numerical simulation of gas-particle flow in nozzle of solid rocket motor |
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| YU Yong,LIU Shu-yan,ZHANG Shi-jun and ZHANG Xia.Numerical simulation of gas-particle flow in nozzle of solid rocket motor[J].Journal of Aerospace Power,2009,24(4):931-937. |
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| Authors: | YU Yong LIU Shu-yan ZHANG Shi-jun and ZHANG Xia |
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| Affiliation: | 1.School of Aerospace Science and Engineering, Beijing Institute of Technology, Beijing 100081, ChinaAcademy of Sciences, Beijing 100190, China2.Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China |
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| Abstract: | In order to study the influences of particles on gas flow in nozzle of solid rocket motor and the rules of particles flowing at different sizes,an Eulerian-Lagrangian approach was employed,Particle trajectory model was used for particle phase and compressible N-S equations were solved.MUSCL-Roe total variation diminishing(TVD) scheme with high order accuracy,and two-stage,time-stepping Runge-Kutta method with TVD character have been used to solve two-dimensional axis symmetric compressible N-S equations by ... |
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| Keywords: | solid rocket motor nozzle two-phase flow numerical simulation particle trajectory model |
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