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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/24596

Title: 特殊葉尖幾何對螺槳葉尖流場影響之探討
The Effect of an Unconventional Tip Geometry on Propeller Tip Flow Phenomena
Authors: 陳正泰;黃正利;辛敬業;柯永澤;林忠京
C.T. Chen;J.L. Hwang;C.Y. Hsin;Y.Z. Kehr;C.C. Lin
Contributors: NTOU:Department of Systems Engineering and Naval Architecture
Keywords: Tip Vortex;Boundary Element Method;RANS Method
Date: 2006-11
Issue Date: 2011-10-20T08:12:59Z
Publisher: 中國造船暨輪機工程學刊
Abstract: Abstract:In this paper, a methodology which consists of numerical analysis and experimental tests will be established and used to investigate the effects of one special kind of propeller tip geometry, namely, the "tip fillet", on tip flow phenomena. The design process of this unconventional propeller tip geometry is first described, and several different designs are then demonstrated in the paper. Both the potential flow boundary element method and the viscous flow RANS method are used to compute the forces and flow field of these propellers with different tip geometries. In order to be confident about the computations, computational results from both potential flow and viscous flow methods are compared to each other and carefully verified, The criteria of determining which tip geometry is better to the formation of tip vortex are then discussed in the paper. It comes to the conclusion that the unconventional propeller tip geometry presented in this paper is more effective in controlling tip vortex formation than conventional tip geometry, and the effects are different for different designs. Finally, experimental results of designed tip geometries are investigated and compared to that of conventional tip geometry to confirm the computational results.
Relation: 25(4), pp.181-192
URI: http://ntour.ntou.edu.tw/handle/987654321/24596
Appears in Collections:[系統工程暨造船學系] 期刊論文

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