Yung-Huai Kuo

The problem of boundary-layer flow is formulated for a gaseous mixture, resulting from the dissociation of a single perfect diatomic gas. Under the assumption that the mixture is in dissociative equilibrium, the flow quantities, such as surface temperature and skin-friction and heat-transport coefficients are evaluated and the importance of the transport coefficients namely, the viscosity, conductivity, and diffusion coefficient are examined. It is shown that under the condition of equilibrium dissociation the effects of dissociation on the transfer coefficients are not large at very high speed.

Of course, it must be emphasized that these conclusions have been reached on the assumptions that the mixture is in dissociative equilibrium. If this restriction is dropped by including such phenomena as relaxation and recombination, the results may well be considerably modified.

高超声速粘性流动中的解离效应

郭永怀

本文研究单组元双原子完全气体离解所产生的混合气体的边界层流动问题。在混合气体处于离解平衡的假设下，考察了各种流动量，诸如物面温度，摩阻系数和传热系数，并分析了各种输运系数（即粘性系数，导热率和扩散系数）的重要性。表明当速度很高时，在平衡离解条件下，离解对输运系数并无重大影响。

当然，必须强调指出。本文的结论是在假定混合气体处于解离平衡条件下得到的。如果放弃了这个限制，比如可以包括松弛和复合等现象，那么研究结果可能会有很大的改变。

原文发表于Journal of the Aeronautical Sciences,1957,24(5):345-350. 见《郭永怀文集》北京：科学出版社出版，pp. 592-597, 2009.