Numerical study of wind effect on green island wake

Shin Jye Liang, Nan Jung Kuo, Dong Jiing Doong, Tai Wen Hsu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Wind effect on Kuroshio-induced island wake downstream the Green Island, Taiwan is studied using a depth-averaged shallow-water model. Seasonal monsoon effect on spatial-temporal scales, such as aspect ratio, dimensionless width, and Strouhal number as well as propagation speed of the vortices of Reynolds number 50 is studied. It is found that northeast monsoon has more pronounced effect in wake characteristics than southwest monsoon does, in terms of flow speed and recirculation zone, the aspect ratio, and dimensionless width. Vortices are pushed back close to the island with a smaller size of recirculation when Kuroshio flows against the northeast monsoon; Vortices are pushed farther downstream with a larger size of recirculation when Kuroshio flows in favor of the southwest monsoon. However, wind effect on temporal variation of island wake seems insignificant. The Strouhal number is between 0.116 and 0.125 from numerical simulations. This value is close to result of previous reports.

Original languageEnglish
Title of host publicationOCEANS 2014 - TAIPEI
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781479936465
DOIs
Publication statusPublished - 2014 Nov 20
EventOCEANS 2014 MTS/IEEE Taipei Conference: Oceans Regeneration - Taipei, Taiwan
Duration: 2014 Apr 72014 Apr 10

Publication series

NameOCEANS 2014 - TAIPEI

Other

OtherOCEANS 2014 MTS/IEEE Taipei Conference: Oceans Regeneration
CountryTaiwan
CityTaipei
Period14-04-0714-04-10

All Science Journal Classification (ASJC) codes

  • Ocean Engineering

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