| 矩形喷流的相似性及流场积分计算方法研究 |
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| 引用本文： | 张正科,姜正行.矩形喷流的相似性及流场积分计算方法研究[J].航空动力学报,1991,6(1):70-72,96. |
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| 作者姓名： | 张正科 姜正行 |
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| 作者单位： | 西北工业大学 |
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| 摘 要： | 矩形喷流的红外隐身效果明显地优于轴对称喷流 ,矩形喷管的壁板可调 ,推力矢量可调的特点也已引起广泛的注意。国外早期矩形喷流的研究多限于实验 ,近年来在数值计算方法上取得进展 1 ]。国内这方面的工作未充分开展。本文在总结现有各类实验数据的基础上 ,给出计算等压可压矩形喷流的积分计算方法。一、矩形喷流的流场结构及相似性矩形喷流的发展按其轴心参数 (速度、温度等 )的衰减可划分为三个阶段。剪切层还未图 1 矩形喷流流场结构示意图扩展到整个流场 ,从而存在一个等速核心区的核心段。发生于矩形喷口上下两长边的剪切层相会于轴…
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| 收稿时间： | 1989/11/1 0:00:00 |
A SIMILARITY AND INTEGRATION METHOD OF A RECTANGULAR JET |
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| Zhang Zhengke and Jiang Zhengxing.A SIMILARITY AND INTEGRATION METHOD OF A RECTANGULAR JET[J].Journal of Aerospace Power,1991,6(1):70-72,96. |
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| Authors: | Zhang Zhengke and Jiang Zhengxing |
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| Institution: | Northwestern Polytechnical University;Northwestern Polytechnical University |
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| Abstract: | The similarity laws of a rectangular jet are summarized on the basis of the experimental data in literature.An integration method is also presented for calculating a constant-pressure,compressible rectangular jet to examine the stealth performance of the rectangular jet.The integration method gives a good prediction of the constant-pressure rectangular jet,and the calculated results agree well with the experimental data.A brief analysis of the stealth performance of the rectangular jet is described in the paper as well. |
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