推进技术 ›› 1994, Vol. 15 ›› Issue (5): 9-15.
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张堃元
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摘要: 采用近年发展起来的随机选取法,研究非均匀二维超音来流流过6种不同形状的模型压缩面时的波后非均匀超音流场。结果表明来流的非均匀性对下游流场具有重大影响。对6种不同形状楔型压缩面流场的计算表明,单纯用改变压缩面型面的办法难以减少来流的非均匀性,但是可以部分改善下游流场的非均匀程度。在研究的6种型面中,凹圆弧压缩面及等摘压缩面在本文限定的非均匀来流下,其性能优于其它4种型面的压缩面。
关键词: 非均匀流;超音速流;二维流;超音速进气道;流场模拟;数值计算
Abstract: A newly developed Random-(choice Method is used to study a two dimensional non-uniform supersonic flow field create when incoming flows passthrough six shock generators with different wedges. The numerical results strongly show the influence of incoming flow non-unifomity on downstream flow field. The computations for compression surfaces reveal that there is nearly no possible to crease incoming flow distorting, or say non-uniformity, but possible to expand it by simply changing the geometry of compression surfaces slightly of the studied six shock generators, these with concave circle configuration and isotropic configuration have better properties in non-uniformity streamwise propagation.
Key words: Non-uniform flow;Supersonic flow;Two dimensional flow;Supersonic inlet;Flow field simulation;Numerical calculation
张堃元. 二维非均匀超音来流下最有利压缩面型面的随机选取法数值研究[J]. 推进技术, 1994, 15(5): 9-15.
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