The structure of viscous shock-front has been investigated in a van der Waals gas between the boundary conditions for x = −ε and x = +ε considering the flow of a gas to be viscous and one-dimensional. The exact solutions for the flow parameters, fluid velocity, pressure, temperature, and change-in-entropy in the shock transition region have been found in view of the equation of state for van der Waals gases. The effects due to the coefficient of viscosity, shock strength, and nonidealness parameter have been analyzed on the structure and flow variable in the shock transition region. The results confirm that the thickness of shock-front increases with increasing value of the coefficient of viscosity and decreases with increasing value of the shock strength and nonidealness parameter of the gases.

中文翻译：

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粘度对范德华气体中冲击波结构的影响

在范德华气体中研究了粘性激波锋的结构，其边界条件为X= -ε和X= +ε考虑气体的流动是粘性的和一维的。根据范德华气体的状态方程，找到了激波转变区的流动参数、流体速度、压力、温度和熵变的精确解。分析了粘性系数、冲击强度和非理想参数对冲击过渡区结构和流动变量的影响。结果证实，激波锋厚度随着粘性系数的增大而增大，随着激波强度和气体非理想参数的增大而减小。