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https://hdl.handle.net/11681/7735
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DC Field | Value | Language |
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dc.contributor | Coastal Ocean Data System (U.S.) | - |
dc.contributor.author | Smith, Ernest R. | - |
dc.contributor.author | Hesser, Tyler J. | - |
dc.contributor.author | Smith, Jane McKee | - |
dc.date.accessioned | 2016-05-06T14:34:17Z | - |
dc.date.available | 2016-05-06T14:34:17Z | - |
dc.date.issued | 2012-09 | - |
dc.identifier.uri | http://hdl.handle.net/11681/7735 | - |
dc.description | Technical Report | - |
dc.description | Abstract: 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.publisher | Coastal and Hydraulics Laboratory (U.S.) | - |
dc.publisher | Engineer Research and Development Center (U.S.) | - |
dc.relation | http://acwc.sdp.sirsi.net/client/en_US/search/asset/1029940 | - |
dc.relation.ispartofseries | ERDC/CHL TR ; 12-21. | - |
dc.rights | Approved for public release; distribution is unlimited. | - |
dc.source | This Digital Resource was created in Microsoft Word and Adobe Acrobat | - |
dc.subject | Fringing reefs Physical modeling Surge and Wave Island Modeling Studies (SWIMS) Coastal waves Wave transformation Wave Setup Wave runup Wave breaking Wave reflection | - |
dc.subject | Coastal Ocean Data System (U.S.) | - |
dc.title | Two-and three-dimensional laboratory studies of wave breaking, dissipation, setup, and runup on reefs | - |
dc.type | Report | en_US |
Appears in Collections: | Technical Report |
Files in This Item:
File | Description | Size | Format | |
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Two-and-three-dimensional.pdf | 57.23 MB | Adobe PDF | View/Open |