Effect of surfactant on the stability of film flow down an inclined plane

被引:83
|
作者
Blyth, MG [1 ]
Pozrikidis, C
机构
[1] Univ E Anglia, Sch Math, Norwich NR4 7TJ, Norfolk, England
[2] Univ Calif San Diego, Dept Mech & Aerosp Engn, La Jolla, CA 92093 USA
关键词
D O I
10.1017/S0022112004001909
中图分类号
O3 [力学];
学科分类号
08 ; 0801 ;
摘要
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.
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页码:241 / 250
页数:10
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