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| 微型固体姿控发动机微喷管内气粒两相流动规律的CFD-DSMC研究 | |
| 引用本文： | 夏广庆,张斌,孙得川,陈茂林.微型固体姿控发动机微喷管内气粒两相流动规律的CFD-DSMC研究[J].固体火箭技术,2012,35(3):356-360. |
| 作者姓名： | 夏广庆 张斌 孙得川 陈茂林 |
| 作者单位： | 1. 大连理工大学工业装备结构分析国家重点实验室,大连,116024 2. 中国航天科工集团公司第九总体设计部,武汉,430040 3. 大连理工大学工业装备结构分析国家重点实验室,大连116024;西北工业大学燃烧、热结构与内流场重点实验室,西安710072 |
| 基金项目： | 国家自然科学基金，新世纪优秀人才支持计划，工业装备结构分析国家重点实验室开放基金，中央高校基本科研业务费专项资金 |
| 摘 要： | 微型固体姿控发动机在航天领域具有广泛的应用前景。以基于MEMS技术的微喷管为研究对象,首先通过计算微喷管中的克努森数,得到了微喷管中的气相流动状态;然后,采用CFD-DSMC方法,模拟了微喷管中的气粒两相流动,并研究了颗粒相质量分数和粒径对气相流动的影响。结果表明,在所研究的来流条件下,微喷管中的连续介质假设是成立的;气相与颗粒相间的动量和能量交换,导致气相马赫数降低、温度升高,同时也导致颗粒相速度增加、温度降低;颗粒相质量分数和粒径均能显著影响气相的马赫数和温度。 |
| 关 键 词： | 微型固体姿控发动机 微喷管 CFD DSMC |
Research on the gas-particle two-phase flow in the micro nozzle of attitude control micro solid rocket motor |
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| XIA Guang-qing , ZHANG Bin , SUN De-chuan , CHEN Mao-lin.Research on the gas-particle two-phase flow in the micro nozzle of attitude control micro solid rocket motor[J].Journal of Solid Rocket Technology,2012,35(3):356-360. | |
| Authors: | XIA Guang-qing ZHANG Bin SUN De-chuan CHEN Mao-lin |
| Institution: | 1,3(1.State Key Laboratory of Structural Analysis for Industrial Equipment,Dalian University of Technology,Dalian 116024,China; 2.The Ninth System Design Department of China Aerospace Science and Industry Corporation,Wuhan 430040,China; 3.Science and Technology on Combustion,Internal Flow and Thermal-Structure Laboratory, Northwestern Polytechnical University,Xi’an 710072,China) |
| Abstract: | Attitude control micro solid rocket motor has wide application potential in the aerospace field.The gas-particle two-phase flow in the micro nozzle based on the MEMS technology was investigated.Firstly,through calculating the Knudsen number of the micro nozzle,the gas phase flow state in the micro nozzle was obtained.Then the gas-particle two-phase flow in the micro nozzle was simulated by using the method of CFD-DSMC.The influence of particle mass fraction and particle diameter on the gas phase flow was studied.The result shows that the continuum assumption in the micro nozzle is established under the conditions of the defined flow in the study.The exchange of momentum and energy between the gas phase and the particle can not noly reduce the gas phase Mach number and raise the temperature,but also increase the particle phase velocity and decrease the temperature.The particle phase mass fraction and particle diameter can significantly influence the Mach number and temperature of gas phase. |
| Keywords: | attitude control micro solid rocket motor micro nozzle CFD DSMC |
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