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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/24484

Title: Visualization and Pattern Identification of the Cavitation-Bursting Phenomenon in Propeller Tip Vortices
Authors: Yi-Chih Chow;Yaw-Huei Lee;Young-Zehr Kehr
Contributors: NTOU:Department of Systems Engineering and Naval Architecture
Date: 2007
Issue Date: 2011-10-20T08:12:28Z
Publisher: ASME/JSME 2007 5th Joint Fluids Engineering Conference (FEDSM2007)
Abstract: Abstract:Marine propeller tip vortices are usually strong enough to induce cavitation in the vortex cores. Tube-shaped vapor cavity extending along the vortex trajectory becomes a way of visualizing the host tip vortex. Our preliminary observations show that, at certain flow conditions, the tip vortex cavity is going to burst into a fog-like micro-bubble cluster, along with a broad-band noise generation. This striking phenomenon and its application motivate us to study its origin and the associated multi-phase flow interactions. We plan to start by performing detailed visualization of the bursting cavitation and using the images obtained to identify the pattern of this cavity break-up process. The results are expected to elucidate the mechanisms involved, and to especially clarify the role of the non-cavitating vortex breakdown (bursting) scenario in forming such a cavitation-bursting phenomenon.
Relation: FEDSM2007-37555, pp.485-488
URI: http://ntour.ntou.edu.tw/handle/987654321/24484
Appears in Collections:[系統工程暨造船學系] 演講及研討會

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