The effect of relative crest submergence on wave breaking over submerged slopes
The effect of relative crest submergence on wave breaking over submerged slopes
Experiments were performed in a wave flume to measure the intensity, transmission and reflection of waves breaking over a submerged reef with an offshore gradient of 1:10. The results demonstrate that the relative water depth over the reef crest (hc/Ho) is a dominant factor affecting the breaking characteristics. In particular it is found that as the relative crest submergence is reduced, there is a considerable increase in the intensity of wave breaking over the reef that can be quantified through measurements of the air cavity enclosed beneath the plunging jet. It is also shown that there is a corresponding decrease in wave transmission and reflection as the submergence is reduced.
breaking waves, submerged reefs, wave transmission, breaking intensity, energy dissipation
967-974
Blenkinsopp, C.E.
667e2a73-0488-4e5d-9eda-d58526fbc8c6
Chaplin, J.R.
d5ed2ba9-df16-4a19-ab9d-32da7883309f
December 2008
Blenkinsopp, C.E.
667e2a73-0488-4e5d-9eda-d58526fbc8c6
Chaplin, J.R.
d5ed2ba9-df16-4a19-ab9d-32da7883309f
Blenkinsopp, C.E. and Chaplin, J.R.
(2008)
The effect of relative crest submergence on wave breaking over submerged slopes.
Coastal Engineering, 55 (12), .
(doi:10.1016/j.coastaleng.2008.03.004).
Abstract
Experiments were performed in a wave flume to measure the intensity, transmission and reflection of waves breaking over a submerged reef with an offshore gradient of 1:10. The results demonstrate that the relative water depth over the reef crest (hc/Ho) is a dominant factor affecting the breaking characteristics. In particular it is found that as the relative crest submergence is reduced, there is a considerable increase in the intensity of wave breaking over the reef that can be quantified through measurements of the air cavity enclosed beneath the plunging jet. It is also shown that there is a corresponding decrease in wave transmission and reflection as the submergence is reduced.
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Published date: December 2008
Keywords:
breaking waves, submerged reefs, wave transmission, breaking intensity, energy dissipation
Organisations:
Energy & Climate Change Group
Identifiers
Local EPrints ID: 186215
URI: http://eprints.soton.ac.uk/id/eprint/186215
ISSN: 0378-3839
PURE UUID: 6d8ddb03-4825-4bc9-967f-5860be60c1be
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Date deposited: 28 May 2013 08:28
Last modified: 15 Mar 2024 03:04
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Author:
C.E. Blenkinsopp
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