| 微喷管中亚声速流场的数值模拟 |
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| 引用本文： | 孙建威,刘明侯,张根烜,陈义良,蔡晓丹.微喷管中亚声速流场的数值模拟[J].中国科学技术大学学报,2005,35(4):563-569. |
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| 作者姓名： | 孙建威 刘明侯 张根烜 陈义良 蔡晓丹 |
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| 作者单位： | 中国科学技术大学热科学与能源工程系,安徽合肥,230027 |
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| 基金项目： | 国家自然科学基金（10372099,50206021）资助项目. |
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| 摘 要： | 采用Navier-Stokes方程对微型缩放喷管内的亚声速流动进行二维数值模拟，重点考察滑移边界条件对计算结果的影响．通过比较有与无滑移边界条件的数值结果，发现微喷管内努森数处于0．014-0．023时，滑移边界条件对微喷管推力的影响不大，但对微喷管扩张段的流场则有较大影响．
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| 关 键 词： | 微喷管 滑移边界 数值模拟 |
| 文章编号： | 0253-2778（2005）04-0563-07 |
| 收稿时间： | 2004-01-14 |
| 修稿时间： | 2004年1月14日 |
Numerical Simulation on Micro Thruster Sub-Sonic Flow Field |
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| SUN Jian-wei,LIU Ming-hou,ZHANG Gen-xuan,Chen Yi-liang,CAI Xiao-dan.Numerical Simulation on Micro Thruster Sub-Sonic Flow Field[J].Journal of University of Science and Technology of China,2005,35(4):563-569. |
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| Authors: | SUN Jian-wei LIU Ming-hou ZHANG Gen-xuan Chen Yi-liang CAI Xiao-dan |
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| Abstract: | The 2-D subsonic flow inside the converging-diverging micronozzle is simulated using Navier-Stokes equation incorporated with a slip boundary condition. A reasonable result is obtained which is then compared to that of the no-slip boundary condition. The comparison shows, that when the Knudson number is in the range of 0. 014 - 0. 023, there is little influence on the prediction of the microthrust with different boundary condition, while the values of the variables in the diverging part of the micronozzle change obviously. |
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| Keywords: | micronozzle slip boundary condition numerical simulation |
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