Abstract
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.
| Original language | English |
|---|---|
| Pages (from-to) | 241-250 |
| Number of pages | 10 |
| Journal | Journal of Fluid Mechanics |
| Volume | 521 |
| DOIs | |
| Publication status | Published - 2004 |