Marangoni Effect

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The Marangoni effect is the flow of fluid caused by a gradient in surface tension [1]. Fluid flows from a region with low surface tension to a region with high surface tension as seen clearly in the following video:

Video of the Marangoni Effect


[1] Velarde, Manuel, "Drops, Liquid Layers and the Marangoni Effect," Philosophical Transactions: Mathematical, Physical and Engineering Sciences 356 829-844 (1998).

[2] Mei, C., "Lecture 4: Marangoni flows," Fluid Dynamics Lecture Notes (May 5, 2004).