Boat wakes leave long-lasting prints on the sea surface due to persistent internal waves and surfactant films
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Peer-reviewed research demonstrates that surface ships generate persistent transverse surface currents via Langmuir-type circulations, which concentrate surfactant films into long-lasting streaks or bands on the sea surface.
# Structure and Persistence of Ship Wakes and the Role of Langmuir-Type Circulations
arXiv (Cornell University). Published: 2018-07-02. Preprint. 0 citations.
## Authors
- John Ryan Somero (Virginia Tech): h-index 3; 13 citations
- Andre Basovich (Cortana (United States)): h-index 4; 65 citations
- Eric G. Paterson (Virginia Tech): h-index 24; 3,624 citations
## Topics
- Ocean Waves and Remote Sensing
- Oceanographic and Atmospheric Processes
- Coastal and Marine Dynamics
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# Structure and Persistence of Ship Wakes and the Role of Langmuir-Type Circulations
## Abstract
Surface ships operating in ocean waves are shown to generate transverse surface currents which persist long after the initial ship-induced currents have decayed. These surface currents are due to the formation of large-scale Langmuir-type circulations and are suggested to be the mechanism for the concentration of surface-active substance into streaks or bands, which are regularly seen in synthetic aperture radar imagery of the ocean surface. These circulations are generated by the Craik-Leibovich vortex force, which results from interaction of ship-induced current with ambient surface waves. Once generated
[1807.00441] Structure and Persistence of Ship Wakes and the Role of Langmuir–Type Circulations
# Structure and Persistence of Ship Wakes and the Role of Langmuir–Type Circulations
J. Ryan Somero Kevin T. Crofton Department of Aerospace and Ocean Engineering, Virginia Tech, Blacksburg, VA 24061 Andre Basovich Cortana Corporation, Falls Church, VA 22046 Eric G. Paterson Kevin T. Crofton Department of Aerospace and Ocean Engineering, Virginia Tech, Blacksburg, VA 24061
###### Abstract
Surface ships operating in ocean waves are shown to generate transverse surface currents which persist long after the initial ship–induced currents have decayed. These surface currents are due to the formation of large–scale Langmuir–type circulations and are suggested to be the mechanism for the concentration of surface–active substance into streaks or bands, which are regularly seen in synthetic aperture radar imagery of the ocean surface. These circulations are generated by the Craik–Leibovich vortex force, which results from interaction of ship–induced current with ambient surface waves. Once generated, the circulations persist due to their large–scale nearly–inviscid nature. Numerical simulatio
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