| 轴对称矢量喷管外流对内流干扰研究 |
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| 引用本文： | 张群锋,吕志咏.轴对称矢量喷管外流对内流干扰研究[J].航空动力学报,2003,18(3):322-326. |
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| 作者姓名： | 张群锋 吕志咏 |
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| 作者单位： | 北京航空航天大学,飞行器设计与应用力学系,北京,100083 |
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| 摘 要： | 应用有限体积法在同位网格中对控制方程进行离散化,对某一轴对称矢量喷管的内外流场进行了数值模拟,数值模拟和试验结果进行了比较,分析了该喷管在矢量偏角20°下,不同的落压比、不同的外流速度对轴对称矢量喷管内流的影响。研究结果表明,喷管内的分离激波是影响轴对称矢量喷管性能的重要因素。
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| 关 键 词： | 航空、航天推进系统 喷管 数值模拟 矢量推力 |
| 文章编号： | 1000-8055(2003)03-0322-05 |
| 收稿时间： | 2002/6/18 0:00:00 |
| 修稿时间： | 2002年6月18日 |
Effect of Outer Flow on Internal Performance of Axisymmetric Vectoring Nozzle |
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| ZHANG QUN-feng and LU Zhi-yong.Effect of Outer Flow on Internal Performance of Axisymmetric Vectoring Nozzle[J].Journal of Aerospace Power,2003,18(3):322-326. |
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| Authors: | ZHANG QUN-feng and LU Zhi-yong |
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| Affiliation: | Beijing University of Aeronautics and Astronautics,Beijing 100083,China;Beijing University of Aeronautics and Astronautics,Beijing 100083,China |
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| Abstract: | The numerical simulation to study the internal flow characteristic of an axisym-metric vectoring nozzle under outer flow has been conducted with collocated finite volume scheme. The results of simulation have been compared with that of experiment. The effect of different NPR and outer flow on internal performance of axisymmetric vectoring nozzle with deflective angle of 20?has been analyzed. The investigation shows that the separation shock wave gives an important effect on internal performance of axisymmetric vectoring nozzle. |
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| Keywords: | aerospace propulsion system nozzle numerical simulation vectoring thrust |
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