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首页> 外文期刊>Journal of Thermophysics and Heat Transfer >Shock Standoff on Hypersonic Blunt Bodies in Nonequilibrium Gas Flows
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Shock Standoff on Hypersonic Blunt Bodies in Nonequilibrium Gas Flows

机译:非平衡气流中高超声速钝体的冲击对峙

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摘要

This paper presents a new theory of hypersonic blunt-nose shock standoff, based on a compressibility coordinate transformation for inviscid flow. It embraces a wide range of nonequilibrium shock-layer chemistry and gas mixtures including ionization and freestream dissociation. An extended binary scaling property of the analysis is also demonstrated. Specific application is made here to the family of arbitrarily diluted dissociating diatomic gases, with parametric study results presented for the scaled shock standoff distance as a function of an appropriate blunt-nose region Damkoehler number. Comparisons with other theories and data in the case of nitrogen are also given and discussed.
机译:本文提出了一种基于无粘性流的可压缩坐标变换的高超音速钝鼻冲击对撞理论。它涵盖了各种非平衡冲击层化学物质和气体混合物,包括电离和自由流离解。还演示了分析的扩展二进制缩放属性。此处将其具体应用到任意稀释的离解双原子气体家族中,并给出了根据适当的钝鼻区域Damkoehler数确定的按比例缩放的冲击距离的参数研究结果。还给出并讨论了与氮的其他理论和数据的比较。

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