| 喉部结构对微喷管性能的影响 |
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| 引用本文： | 童军杰,徐进良,李玉秀,岑继文.喉部结构对微喷管性能的影响[J].航空动力学报,2009,24(5):1048-1054. |
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| 作者姓名： | 童军杰 徐进良 李玉秀 岑继文 |
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| 作者单位： | 1. 中国科学院,广州能源研究所,微能源系统实验室,广州,510640;广东海洋大学,工程学院,湛江,524006
2. 中国科学院,广州能源研究所,微能源系统实验室,广州,510640 |
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| 基金项目： | 国家自然科学基金资助(50776089) |
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| 摘 要： | 以FLUENT6.1为工具,利用数值计算求解二维稳态可压缩N-S方程,模拟了喉部有无圆弧过渡以及不同的喉部曲率半径对扩张比为5.4的收缩-扩张微喷管x方向质量流速和总压力影响,进而研究了对微喷管的流量系数和推力效率影响.数值计算结果表明:喉部有无圆弧过渡以及不同的喉部曲率半径,将会影响微喷管出口处x方向的质量流速和总压力分布,随着微喷管喉部特征雷诺数的增大,相对应微喷管最大流量和推力的微喷管喉部曲率半径也相应增加.
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| 关 键 词： | 数值计算 微喷管 推力 质量流速 |
| 收稿时间： | 2008/5/15 0:00:00 |
| 修稿时间： | 2008/10/8 0:00:00 |
Effects of throat geometry on micro nozzle's performance |
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| TONG Jun-jie,XU Jin-liang,LI Yu-xiu and CEN Ji-wen.Effects of throat geometry on micro nozzle''s performance[J].Journal of Aerospace Power,2009,24(5):1048-1054. |
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| Authors: | TONG Jun-jie XU Jin-liang LI Yu-xiu and CEN Ji-wen |
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| Institution: | 1.Micro Energy System Laboratory;Guangzhou Institute of Energy Conversion;Chinese Academy of Sciences;Guangzhou 510640;China;2.Engineering College;Guangdong Ocean University of Technology;Zhanjiang 524006;China |
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| Abstract: | The FLUENT6.1 software was applied to simulate the supersonic flow in micro convergent-divergent nozzle with 5.4 expansion ratios.The simulation was complemented by computing steady two-dimensional Navier-Stokes equations to study the effect of mass x velocity and total pressure from throat,which has arc or not and different throat arc radius.Also,the fluent mass and thrust force effects were studied.It is observed by the study that x orientation mass velocity of thrust exit and thrust force are effected by... |
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| Keywords: | numerical simulation micro nozzle thrust force mass velocity |
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