The influence of aspect ratio on vortex evolution induced by a solitary wave propagating over a cavity

C. Lin, T. C. Ho, C. S. Chang

研究成果: Paper

摘要

The vortex shedding process induced by a solitary wave propagating over a symmetric cavity was studied experimentally, using the particle image velocimetry (PIV) technique and flow visualization technique. The wave height of the solitary wave is 1.4 cm, and the wave height (H) to water depth (h) of the experiment is 0.2. The ratio of the length to the depth of the cavity, A r, was defined as aspect ratio. The vortex shedding processes were investigated particularly for Ar = 0.5 using the flow visualization technique and PIV. The quantitative characteristics of shedding primary vortex in the cavity, such as the trajectories of the vortex core and jet like flow, vorticity of the primary vortex core, and the circulation of the primary vortex, were studied in detail. Finally, it is found that all the characteristics change obviously while Ar is less than 1.0.

原文English
頁面1159-1170
頁數12
出版狀態Published - 2007 一月 1
事件8th International Conference on the Mediterranean Coastal Environment, MEDCOAST 2007 - Alexandria, Egypt
持續時間: 2007 十一月 132007 十一月 17

Conference

Conference8th International Conference on the Mediterranean Coastal Environment, MEDCOAST 2007
國家Egypt
城市Alexandria
期間07-11-1307-11-17

All Science Journal Classification (ASJC) codes

  • Geography, Planning and Development

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  • 引用此

    Lin, C., Ho, T. C., & Chang, C. S. (2007). The influence of aspect ratio on vortex evolution induced by a solitary wave propagating over a cavity. 1159-1170. 論文發表於 8th International Conference on the Mediterranean Coastal Environment, MEDCOAST 2007, Alexandria, Egypt.