| 微喷管流动的DSMC方法模拟 |
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| 引用本文： | 尹乐,陈伟芳,石于中.微喷管流动的DSMC方法模拟[J].国防科技大学学报,2004,26(5):9-12. |
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| 作者姓名： | 尹乐 陈伟芳 石于中 |
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| 作者单位： | 国防科技大学航天与材料工程学院,湖南,长沙,410073;国防科技大学航天与材料工程学院,湖南,长沙,410073;国防科技大学航天与材料工程学院,湖南,长沙,410073 |
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| 基金项目： | 国家部委基金资助项目(5413030301KG01) |
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| 摘 要： | 目前微型航天器正在积极地发展中,微喷管在其推进系统中具有重要地位,对微喷管进行进一步研究是很有必要的。运用DSMC(DirectSimulationMonte Carlo)方法从分子运动论层次对轴对称微喷管流动现象进行模拟,分析了喷管流量以及尺寸大小对喷管流动和性能的影响。研究表明,喷管流量及尺寸对流动特性和微喷管性能存在不同程度的影响。
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| 关 键 词： | DSMC方法 微喷管 流动 |
| 文章编号： | 1001-2486(2004)05-0009-04 |
| 收稿时间： | 2004/4/28 0:00:00 |
| 修稿时间： | 2004年4月28日 |
Simulation of Micro-Nozzle Flow by DSMC Method |
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| YIN Le,CHEN Weifang and SHI Yuzhong.Simulation of Micro-Nozzle Flow by DSMC Method[J].Journal of National University of Defense Technology,2004,26(5):9-12. |
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| Authors: | YIN Le CHEN Weifang and SHI Yuzhong |
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| Institution: | College of Aerospace and Materials Engineering, National Univ. of Defense Technology, Changsha 410073, China;College of Aerospace and Materials Engineering, National Univ. of Defense Technology, Changsha 410073, China;College of Aerospace and Materials Engineering, National Univ. of Defense Technology, Changsha 410073, China |
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| Abstract: | At present, micro-spacecrafts are being developed. Micro-nozzles are very important in propulsion systems of micro-spacecrafts. So further study on micro-nozzles is essential. DSMC(direct simulation Monte-Carlo)calculations for the flow in axisymmetric micro-nozzles are conducted on molecular-based models. The influence of the mass flow rate and dimension on the flow and performance in the nozzle are also discussed. The study indicates that the mass flow rate and dimension of the nozzle have different degrees of influence on the flow and performance. |
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| Keywords: | DSMC micronozzle flow |
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