| 矢量推力喷流对飞行器气动载荷影响的研究 |
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| 引用本文： | 宋科,李栋,乔志德.矢量推力喷流对飞行器气动载荷影响的研究[J].航空计算技术,2005,35(3):37-40. |
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| 作者姓名： | 宋科 李栋 乔志德 |
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| 作者单位： | 西北工业大学,翼型、叶栅空气动力学国防科技重点实验室,陕西,西安,710072 |
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| 摘 要： | 矢量推力喷流对飞行器绕流具有干扰作用,引起飞行器气动载荷变化,对飞行器操纵性也有潜在影响。这种气动干扰和载荷变化是矢量推力技术研究的一个重要方面。与普通喷流相比,矢量推力喷流具有喷流偏转的特点,喷流偏转对气动干扰有重要贡献。因此本文采用多块搭接网格模拟了矢量推力飞行器无粘绕流流场,通过力系数和力矩系数对比,探讨了飞行器气动载荷随喷流偏转角的变化规律,这些规律具有理论和实际意义。
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| 关 键 词： | 矢量推力喷流 数值模拟 流场干扰 气动载荷 |
| 文章编号： | 1671-654X(2005)03-0037-04 |
| 修稿时间： | 2005年4月21日 |
The Investigation of the Influence of Thrust Vectoring Jet Flow on Aircraft Aerodynamic Load |
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| SONG Ke,LI Dong,QIAO Zhi-de.The Investigation of the Influence of Thrust Vectoring Jet Flow on Aircraft Aerodynamic Load[J].Aeronautical Computer Technique,2005,35(3):37-40. |
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| Authors: | SONG Ke LI Dong QIAO Zhi-de |
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| Abstract: | Thrust vectoring jet flow interferes the flow over aircrafts,drives its aerodynamic load to vary,and may potentially influence the controllability of aircrafts.The investigation on this aerodynamic interference is a significant branch in the research field of thrust vectoring.different from general jet flow,thrust vectoring jet flow has a vectoring angle,which greatly contributes to the aerodynamic interference.In this study the computational simulation using multi-block grid was conducted to simulate the inviscid flow over thrust vectoring aircrafts.By comparing force and moment coefficient,the trend of aerodynamic load variation with different vectoring angle was analyzed and the valuable rules were found out. |
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| Keywords: | thrust vectoring jet flow computational simulation flowfield interferene aerodynamic load |
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