Bibliographic Details
| Title: |
Experimental investigation of surfactant effects on gravity–capillary wave dissipation and surface flow. |
| Authors: |
Xu, Chang1 (AUTHOR) xuchang@tamu.edu, Perlin, Marc1 (AUTHOR) |
| Source: |
Journal of Fluid Mechanics. 12/25/2025, Vol. 1025, p1-18. 18p. |
| Subjects: |
Surface active agents, Capillary waves, Marangoni effect, Energy dissipation, Sound-wave attenuation, Sea surface microlayer, Ocean-atmosphere interaction, Hydrodynamics |
| Abstract: |
Sea surface films significantly influence air–sea interaction. While their damping effect on gravity–capillary waves is well recognised, the detailed mechanisms by which surface films alter small-scale wave dynamics – particularly energy dissipation and near-surface flow patterns – remain insufficiently understood. This paper presents experimental observations focusing on small-scale wave profiles and surface-flow dynamics in the presence of surfactants, providing direct experimental evidence of underlying mechanisms such as Marangoni effects. The experiments demonstrate enhanced energy dissipation and significant alterations in near-surface flow caused by surfactants, including the transformation of typical circular motion into elliptical-like trajectories and the emergence of reverse surface drift. [ABSTRACT FROM AUTHOR] |
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| Database: |
Engineering Source |
