Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6426496 | Dynamics of Atmospheres and Oceans | 2016 | 11 Pages |
Abstract
The transient effects of horizontal variation of sea-surface wave roughness due to surfactant films on near-surface turbulent wind are studied theoretically and experimentally. Here we suggest two practical schemes for calculating variations of wind velocity profiles near the water surface, the average short-wave roughness of which is varying in space and time when a film slick is present. The schemes are based on a generalized two-layer model of turbulent air flow over a rough surface and on the solution of the continuous model involving the equation for turbulent kinetic energy of the air flow. Wave tank studies of wind flow over wind waves in the presence of film slicks are described and compared with theory.
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Atmospheric Science
Authors
Mikhail Charnotskii, Stanislav Ermakov, Lev Ostrovsky, Olga Shomina,