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dc.contributor.advisorKeolian, Robert M.
dc.contributor.authorLawrence, Richard T.
dc.dateDecember 1992
dc.date.accessioned2012-11-29T16:18:12Z
dc.date.available2012-11-29T16:18:12Z
dc.date.issued1992-12
dc.identifier.urihttps://hdl.handle.net/10945/23891
dc.description.abstractan experiment designed to find collective sea state modes in deep water surface gravity waves was performed. The experiment was conducted in a large water tank with fans to create wind a driven background sea state. This background sea state may be more precisely referred to as a condition of wave turbulence. The background sea state was perturbed with an additional burst of waves created at one end of the tank by a computer controlled mechanical paddle. Different wind speeds and input burst waveforms were used. The wave height was measured with a four wire probe, with integrated circuit implementation. Data acquisition, manipulation, and averaging were automated. The probable collective mode can be seen in spectral density versus time images as a nondispersive decrease in background spectral density. It was estimated that this decrease is spectral density propagated independently of the input wave burst by examining its arrival time relative to burst energy arrival time for difficult probe to paddle distances. More importantly, it was determined that the propagation speed was a function of the background spectral peak frequency. Additionally, input burst energy at frequencies above the background spectral peak was not observed to propagate.en_US
dc.description.urihttp://archive.org/details/experimentalinqu1094523891
dc.format.extent51 p.en_US
dc.language.isoen_US
dc.publisherMonterey, California. Naval Postgraduate Schoolen_US
dc.rightsThis publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.en_US
dc.titleExperimental inquires into collective sea state modes in deep water surface gravity wavesen_US
dc.typeThesisen_US
dc.contributor.secondreaderDenardo, Bruce
dc.contributor.corporateNaval Postgraduate School
dc.contributor.departmentEngineering Acoustics Academic Group
dc.subject.authorCollective modeen_US
dc.subject.authorWave staffen_US
dc.subject.authorWave turbulenceen_US
dc.subject.authorWind-waveen_US
dc.description.serviceLieutenant, United States Navyen_US
etd.thesisdegree.nameM.S. in Engineering Acousticsen_US
etd.thesisdegree.levelMastersen_US
etd.thesisdegree.disciplineEngineering Acousticsen_US
etd.thesisdegree.grantorNaval Postgraduate Schoolen_US
dc.description.distributionstatementApproved for public release; distribution is unlimited.


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