Characteristics of vortex shedding process induced by a solitary wave propagating over a submerged obstacle

Chang Lin, Tsung-Chun Ho, Shih Chun Hsieh, Kuang An Chang

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

1 Citation (Scopus)

Abstract

The generation and evolution of shedding vortices induced by a solitary wave propagating over a two-dimensional submerged obstacle, a rectangular dike or a vertical plate, was investigated experimentally. The vortex shedding process was observed qualitatively using laser induced fluorescence (LIF) technique and particle tracing technique. The velocity fields were measured quantitatively using particle image velocimetry (PIV). Base on the results of the flow visualization, the comparison of the vortex shedding processes between rectangular dike and vertical plate was qualitatively made under the same wave condition. It is noted that the process of either rectangular model or vertical plate can be divided into four common phases, but the characteristics of shedding vortices are different in the same phase. In addition, the velocity similarity profiles for the formation of separated shear layer and the formation of vertical jet were also quantitatively compared between rectangular dike and vertical plate.

Original languageEnglish
Title of host publicationProceedings of 25TH International Conference on Offshore Mechanics and Arctic Engineering, OMAE 2006
DOIs
Publication statusPublished - 2006 Nov 29
Event25TH International Conference on Offshore Mechanics and Arctic Engineering, OMAE 2006 - Hamburg, Germany
Duration: 2006 Jun 42006 Jun 9

Publication series

NameProceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE
Volume2006

Other

Other25TH International Conference on Offshore Mechanics and Arctic Engineering, OMAE 2006
CountryGermany
CityHamburg
Period06-06-0406-06-09

All Science Journal Classification (ASJC) codes

  • Ocean Engineering
  • Energy Engineering and Power Technology
  • Mechanical Engineering

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