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The effect of relative crest submergence on wave breaking over submerged slopes

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
0378-3839
967-974
Blenkinsopp, C.E.
667e2a73-0488-4e5d-9eda-d58526fbc8c6
Chaplin, J.R.
d5ed2ba9-df16-4a19-ab9d-32da7883309f
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), 967-974. (doi:10.1016/j.coastaleng.2008.03.004).

Record type: Article

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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More information

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
ORCID for J.R. Chaplin: ORCID iD orcid.org/0000-0003-2814-747X

Catalogue record

Date deposited: 28 May 2013 08:28
Last modified: 15 Mar 2024 03:04

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Contributors

Author: C.E. Blenkinsopp
Author: J.R. Chaplin ORCID iD

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