Please use this identifier to cite or link to this item: https://hdl.handle.net/11681/7735
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dc.contributorCoastal Ocean Data System (U.S.)-
dc.contributor.authorSmith, Ernest R.-
dc.contributor.authorHesser, Tyler J.-
dc.contributor.authorSmith, Jane McKee-
dc.date.accessioned2016-05-06T14:34:17Z-
dc.date.available2016-05-06T14:34:17Z-
dc.date.issued2012-09-
dc.identifier.urihttp://hdl.handle.net/11681/7735-
dc.descriptionTechnical Report-
dc.descriptionAbstract: Physical model studies were performed at a 1-to-50 model to prototype scale in a three-dimensional (3-D) basin and a two-dimensional (2-D) flume to measure wave transformation, setup, and runup on a generalized reef to improve understanding of the processes. Incident wave and water level conditions encompassed a range of combinations representative of the geographical locations where reefs are present. Results from the 3-D experiment indicated higher frequency wave energy dissipated across the reef, whereas low frequency wave energy remained nearly constant. Three-dimensional patterns were observed on the reef, which was attributed to non-symmetrical bathymetry, wave-wave interactions, wave refraction, and reflection. Additional tests with an angled channel cut into the reef showed net offshore flow in the channel and near the reef centerline, where a net alongshore velocity also was measured. Wave heights were similar to the non-channel tests, but longer-period waves with higher incident heights generally showed greater heights in the shoaling region. A cross-section of the 3-D reef was duplicated and installed in a wave tank. The 2-D experiments were performed for similar wave and water level conditions as in the three-dimensional tests. Reef slopes of 1:2.5 and 1:5 were examined. Transformation results were similar to the 3-D tests except that a strong return flow was observed which increased breaker height. Reef roughness was varied for both the 2-D and 3-D tests, but had little effect on the waves, indicating that a rougher surface would be necessary to reduce wave height. NOTE: This.pdf file is very large. Allow your browser several minutes to download the file.-
dc.publisherCoastal and Hydraulics Laboratory (U.S.)-
dc.publisherEngineer Research and Development Center (U.S.)-
dc.relationhttp://acwc.sdp.sirsi.net/client/en_US/search/asset/1029940-
dc.relation.ispartofseriesERDC/CHL TR ; 12-21.-
dc.rightsApproved for public release; distribution is unlimited.-
dc.sourceThis Digital Resource was created in Microsoft Word and Adobe Acrobat-
dc.subjectFringing reefs Physical modeling Surge and Wave Island Modeling Studies (SWIMS) Coastal waves Wave transformation Wave Setup Wave runup Wave breaking Wave reflection-
dc.subjectCoastal Ocean Data System (U.S.)-
dc.titleTwo-and three-dimensional laboratory studies of wave breaking, dissipation, setup, and runup on reefs-
dc.typeReporten_US
Appears in Collections:Technical Report

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