Effect of surfactant on the stability of film flow down an inclined plane
Effect of surfactant on the stability of film flow down an inclined plane
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DOI：
10.1017/s0022112004001909
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发表时间：
2004-12
影响因子：
3.7
通讯作者：
M. Blyth;C. Pozrikidis
中科院分区：
文献类型：
--
作者：
M. Blyth;C. Pozrikidis
本文用简正波分析法研究了不溶性表面活性剂对重力驱动的液膜沿斜面向下流动的稳定性的影响。Orr-Sommerfeld方程的数值解揭示了一个稳定的Marangoni模式和一个可能不稳定的Yih模式的发生，并表明表面活性剂的主要作用是有效地提高临界雷诺数，在不稳定性是第一次遇到。
The effect of an insoluble surfactant on the stability of the gravity-driven flow of a liquid film down an inclined plane is investigated by a normal-mode analysis. Numerical solutions of the Orr–Sommerfeld equation reveal the occurrence of a stable Marangoni mode and a possibly unstable Yih mode, and demonstrate that the primary role of the surfactant is effectively to raise the critical Reynolds number at which instability is first encountered.