Swell attenuation due to wave-induced turbulence
In the paper, we will discuss two separate, but connected issues: wave-turbulence interactions, and estimates of swell attenuation due to such turbulence. Theoretically, potential waves cannot generate the vortex motion, but the scale considerations indicate that if the steepness of waves is not too...
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American Society of Mechanical Engineers
2012
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Online Access: | http://hdl.handle.net/1959.3/241226 https://doi.org/10.1115/OMAE2012-83706 |
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ftswinburne:tle:fc69f817-dc00-4175-b761-9af99c98a95a:28f49f06-0da8-44be-9edc-ad1dd0a9c582:1 2023-05-15T14:24:23+02:00 Swell attenuation due to wave-induced turbulence Babanin, Alexander V. Swinburne University of Technology 2012 http://hdl.handle.net/1959.3/241226 https://doi.org/10.1115/OMAE2012-83706 unknown American Society of Mechanical Engineers http://hdl.handle.net/1959.3/241226 https://doi.org/10.1115/OMAE2012-83706 Copyright © 2012 ASME. 31st American Society of Mechanical Engineers (ASME) International Conference on Ocean, Offshore and Arctic Engineering (OMAE2012), Rio de Janeiro, Brazil, 01-06 July 2012, Vol. 2, pp. 439-443 Conference paper 2012 ftswinburne https://doi.org/10.1115/OMAE2012-83706 2019-09-07T20:59:00Z In the paper, we will discuss two separate, but connected issues: wave-turbulence interactions, and estimates of swell attenuation due to such turbulence. Theoretically, potential waves cannot generate the vortex motion, but the scale considerations indicate that if the steepness of waves is not too small, the Reynolds number can exceed the critical values. This means that in presence of initial non-potential disturbances the orbital velocities can generate the vortex motion and turbulence. This problem was investigated by laboratory means, numerical simulations and field observations. As a sink of wave energy, such dissipation is small in presence of wave breaking, but is essential for swell. Swell prediction by spectral wave models is often poor, but is important for offshore and maritime industry. Based on the research of wave-induced turbulence, new swell-dissipation function is proposed. It agrees well with satellite observations of long-distance swell propagation and is being employed and tested in spectral wave models. Conference Object Arctic Swinburne University of Technology: Swinburne Research Bank Volume 2: Structures, Safety and Reliability 439 443 |
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Swinburne University of Technology: Swinburne Research Bank |
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ftswinburne |
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description |
In the paper, we will discuss two separate, but connected issues: wave-turbulence interactions, and estimates of swell attenuation due to such turbulence. Theoretically, potential waves cannot generate the vortex motion, but the scale considerations indicate that if the steepness of waves is not too small, the Reynolds number can exceed the critical values. This means that in presence of initial non-potential disturbances the orbital velocities can generate the vortex motion and turbulence. This problem was investigated by laboratory means, numerical simulations and field observations. As a sink of wave energy, such dissipation is small in presence of wave breaking, but is essential for swell. Swell prediction by spectral wave models is often poor, but is important for offshore and maritime industry. Based on the research of wave-induced turbulence, new swell-dissipation function is proposed. It agrees well with satellite observations of long-distance swell propagation and is being employed and tested in spectral wave models. |
author2 |
Swinburne University of Technology |
format |
Conference Object |
author |
Babanin, Alexander V. |
spellingShingle |
Babanin, Alexander V. Swell attenuation due to wave-induced turbulence |
author_facet |
Babanin, Alexander V. |
author_sort |
Babanin, Alexander V. |
title |
Swell attenuation due to wave-induced turbulence |
title_short |
Swell attenuation due to wave-induced turbulence |
title_full |
Swell attenuation due to wave-induced turbulence |
title_fullStr |
Swell attenuation due to wave-induced turbulence |
title_full_unstemmed |
Swell attenuation due to wave-induced turbulence |
title_sort |
swell attenuation due to wave-induced turbulence |
publisher |
American Society of Mechanical Engineers |
publishDate |
2012 |
url |
http://hdl.handle.net/1959.3/241226 https://doi.org/10.1115/OMAE2012-83706 |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
31st American Society of Mechanical Engineers (ASME) International Conference on Ocean, Offshore and Arctic Engineering (OMAE2012), Rio de Janeiro, Brazil, 01-06 July 2012, Vol. 2, pp. 439-443 |
op_relation |
http://hdl.handle.net/1959.3/241226 https://doi.org/10.1115/OMAE2012-83706 |
op_rights |
Copyright © 2012 ASME. |
op_doi |
https://doi.org/10.1115/OMAE2012-83706 |
container_title |
Volume 2: Structures, Safety and Reliability |
container_start_page |
439 |
op_container_end_page |
443 |
_version_ |
1766296805373378560 |