Conical flow near singular rays
Conical flow near singular rays
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DOI：
10.1017/s0022112074001777
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发表时间：
1974-04
影响因子：
3.7
通讯作者：
G. Zahalak;M. Myers
中科院分区：
文献类型：
--
作者：
G. Zahalak;M. Myers
本文用匹配渐近展开法研究了理想气体绕锥体的定常流动，特别着重于线性化理论中出现的奇异射线附近的流动。在此区域的流动的一阶问题制定，导致Kuo方程，并在主锋后的压缩流的情况下，得到一个近似解。这个解决方案与以前的调查结果进行比较，以期评估莱特希尔-惠瑟姆理论的适用性。
The steady flow of an ideal gas past a conical body is investigated by the method of matched asymptotic expansions, with particular emphasis on the flow near the singular ray occurring in linearized theory. The first-order problem governing the flow in this region is formulated, leading to the equation of Kuo, and an approximate solution is obtained in the case of compressive flow behind the main front. This solution is compared with the results of previous investigations with a view to assessing the applicability of the Lighthill-Whitham theories.