| 二元高超声速进气道内部阻力特性分析与研究 |
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| 引用本文： | 卫永斌,张堃元,骆晓臣.二元高超声速进气道内部阻力特性分析与研究[J].空气动力学学报,2010,28(1). |
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| 作者姓名： | 卫永斌 张堃元 骆晓臣 |
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| 作者单位： | 南京航空航天大学,能源与动力学院,江苏,南京,210016 |
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| 摘 要： | 以二元高超声速进气道为研究对象,以数值模拟为手段,详细分析了该进气道内壁面上的压差阻力、摩擦阻力、总阻力随飞行马赫数的变化。接着用流线跟踪得到该二元高超声速进气道的分流面,研究了作用在该分流面上的附加阻力随飞行马赫数的变化。为了更准确地评价该进气道的阻力特性,采用了进气道的推力效率和推阻比两个概念,并且探讨了它们随飞行马赫数的变化。最后,分析讨论了作用在该进气道捕获流管上的实际总阻力随飞行马赫数的变化。
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| 关 键 词： | 二元高超声速进气道 压差阻力 摩擦阻力 附加阻力 推力效率 推阻比 |
Analysis and investigation of internal drags trait in two-dimensional hypersonic inlets |
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| WEI Yong-bin,ZHANG Kun-yuan,LUO Xiao-chen.Analysis and investigation of internal drags trait in two-dimensional hypersonic inlets[J].Acta Aerodynamica Sinica,2010,28(1). |
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| Authors: | WEI Yong-bin ZHANG Kun-yuan LUO Xiao-chen |
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| Institution: | Coll.of Energy and Power/a>;Nanjing Univ.of Aeronautics and Astronatics/a>;Nanjing 210016/a>;China |
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| Abstract: | A detailed Analysis and investigation is performed in the text on the variation of the pressure drag and friction drag and total drags on the internal walls of the two-dimensional hypersonic inlet along with the variation of Mach numbers.Besides,the variation of additive drags acted on the distributary surface gained by stream traced method along with the variation of Mach numbers are particularly studied.In order to evaluate drags trait of the two-dimensional hypersonic inlet,Thrust efficiency and Thrust /... |
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| Keywords: | two-dimensional hypersonic inlet pressure drag friction drag additive drag thrust efficiency thrust and drag ratio |
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