| Numerical Simulations on Geometrical Properties of Wall-attaching Transonic Jet |
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| 作者姓名： | Hu Dapeng Chen Zuzhi Dai Yuqiang Chen Shengtao |
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| 作者单位： | 大连理工大学气波制冷技术研究推广中心 |
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| 基金项目： | 国家高技术研究发展计划（863计划） |
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| 摘 要： | Effects of operating conditions and device＇ s geometrical sizes on geometrical properties of wall-attaching transonic jet between two parallel plat plates are numerically simulated. Conclusions are as follows ： 1 ） Upriver part of the wall-attaching jet＇s center streamline is in good accordance with parabola; 2） When both gas inlet pressure and outlet pressure as well as their ratio are not too high （ the outlet pressure is less than 10 MPa and the pressure ratio is less than 3 ）, the center streamlines of the wall-attaching jet with the same pressure ratio coincide with each other very well, and the deflection degree of the center streamline decreases with rise of the pressure ratio ; 3 ） The deflection degree of the jet＇ s center streamline decreases with either broadening of nozzle＇ s throat or rise of wall offset ; 4） With rise of the pressure ratio, attachment distance of the jet increases, but the increase rate descends ; 5 ） The attachment distance ascends with rise of either the nozzle＇ s throat or the wall offset.
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| 关 键 词： | 数值模拟 几何尺寸 墙壁 喷射性能 跨音速 出口压力 飞机附件 操作条件 |
Numerical Simulations on Geometrical Properties of Wall attaching Transonic Jet |
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| Hu Dapeng,Chen Zuzhi,Dai Yuqiang,Chen Shengtao.Numerical Simulations on Geometrical Properties of Wall-attaching Transonic Jet[J].Engineering Sciences,2008,6(1):38-42. |
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| Authors: | Hu Dapeng Chen Zuzhi Dai Yuqiang and Chen Shengtao |
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| Institution: | Gas Wave Refrigeration Research and Popularization Center of Dalian University of
Technology, Dalian 116012, China;Gas Wave Refrigeration Research and Popularization Center of Dalian University of
Technology, Dalian 116012, China;Gas Wave Refrigeration Research and Popularization Center of Dalian University of
Technology, Dalian 116012, China;Gas Wave Refrigeration Research and Popularization Center of Dalian University of
Technology, Dalian 116012, China |
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| Abstract: | wall-attaching transonic jet parallel plat plates geometrical properties attachment distance |
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| Keywords: | wall attaching transonic jet parallel plat plates geometrical properties attachment distance |
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