粘性导热流体中激波阵面结构的研究

Anmol Singh, R. Anand
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引用次数: 0

摘要

利用Navier-Stokes方程研究了粘性导热气体介质中一维稳态激波前的内部结构。利用波前分析的方法,导出了颗粒速度、温度、压力和熵变分布等不同流动变量的解析表达式和计算。在激波过渡区内观察到流动变量的突变。计算了激波面厚度和逆激波面厚度,并与文献结果进行了比较。讨论了不同流量参数对激波结构的影响。所得结果表明,流动参数即粘度系数、马赫数、绝热指数和普朗特数对激波前结构的影响最为显著。
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On the structure of shock-front in a viscous and heat conducting fluids
The internal structure of one-dimensional steady shock-front is investigated using the Navier-Stokes equations in a viscous and heat conducting gaseous medium. The analytical expression and calculations for the different flow variables i.e ., the particle velocity, temperature, pressure, and change-in-entropy distribution have been derived using the method of wave-front analysis. The abrupt changes in the flow variables have been observed within the shock transition region. The thickness and inverse shock-front thickness are calculated and obtained results are compared with the reported literatures. The effects on the shock structure due to the variation of different flow parameters have been discussed in each case for all the flow variables. Obtained outcomes manifests that the flow parameters i.e ., coefficient of viscosity, Mach number, adiabatic index and Prandtl number exert dominant impact on the structure of shock-front, prominently.
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