Structural evolution of a wave-current sediment concentration boundary layer

Wing Hong Onyx Wai, Keith W. Bedford, Charles M. Libicki, Robert E. Van Evra

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

2 Citations (Scopus)

Abstract

A data record of 16 hour of highly resolved concentration profiles and velocities was collected near Hamilton Harbor, Lake Ontario. The data record covered periods of calm currents, wave buildup, and flow reversal. Pattern recognition techniques were applied to determine the spatial structure and frequency of occurrence of the ten-minute boundary layer average profiles. Using a shape similarity analysis, the 96 average concentration profiles in the 16 hour record collapsed to only two pattern classes. The first class associates with steady currents and moderate waves, and the second class associates with high intensity of current induced turbulence and well developed wave activity. The pattern shapes extracted by the shape and magnitude analysis in the 16 hour record are slowly evolving from a linear-log distribution in the current flow period to log-linear distribution during steady current and wave buildup, and then to log-log distribution when current induced turbulence and well developed wave activity are in command.
Original languageEnglish
Title of host publicationCoastal Sediments '91
PublisherPubl by ASCE
Pages342-355
Number of pages14
ISBN (Print)0872628086
Publication statusPublished - 1 Jan 1991
Externally publishedYes
EventProceedings of a Specialty Conference on Quantitative Approaches to Coastal Sediment Processes - Seattle, WA, United States
Duration: 25 Jun 199127 Jun 1991

Conference

ConferenceProceedings of a Specialty Conference on Quantitative Approaches to Coastal Sediment Processes
CountryUnited States
CitySeattle, WA
Period25/06/9127/06/91

ASJC Scopus subject areas

  • Engineering(all)

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