An analytical approach for stand-off distance of detached shock waves

S. Askari

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An analytical approach for stand-off distance of detached shock waves

机译：分离的冲击波对峙距离的解析方法

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An analytical model for prediction of shock stand-off distance in front of blunt bodies was derived based on dimensional analysis. Despite of existing models, it is not limited to a specific geometry or a special range of Mach number. Five blunt body configurations were studied to verify accuracy of this mathematical model. A CFD code was established and validated by existing experimental data and shock stand-off distance (SSOD) in front of these configurations was obtained by this CFD code and used for validation of the analytical model that confirmed its accuracy. SSOD was computed by inviscid flow and various turbulence models in order to investigate effects of viscosity and turbulence modeling on it.

机译：基于尺寸分析，推导了预测钝体前部冲击距离的解析模型。尽管已有模型，但它并不限于特定的几何形状或特定范围的马赫数。研究了五种钝器构型，以验证该数学模型的准确性。建立了CFD代码并通过现有的实验数据进行了验证，并通过CFD代码获得了这些配置之前的冲击距离（SSOD），并将其用于确认其准确性的分析模型的验证。为了研究粘度和湍流模型对其的影响，通过无粘性流和各种湍流模型计算了SSOD。

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来源
《Aerospace science and technology》 |2013年第1期|384-390|共7页
作者
S. Askari;
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作者单位

Mechanical Engineering Department, Amirkabir University of Technology, 424 Hafez Avenue, Tehran 15875-4413, Iran;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类
关键词
Shock stand-off distance (SSOD); Mach number; Blunt body; Turbulence model; CFD;

机译：冲击距离（SSOD）;马赫数;钝体;湍流模型;CFD;

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An analytical approach for stand-off distance of detached shock waves

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