English  |  正體中文  |  简体中文  |  Items with full text/Total items : 26988/38789
Visitors : 2319369      Online Users : 29
RC Version 4.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
Scope Adv. Search
LoginUploadHelpAboutAdminister

Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/47070

Title: Evaluation of the Effect of Ship Motion on Propeller Performance
Authors: Kuan-Chen Chen;Ching-Yeh Hsin;Ching-Pu Lee
Contributors: 國立臺灣海洋大學:系統工程暨造船係
Keywords: propeller in wave;ship motion;Boundary Element Method;RANS, body force
Date: 2014
Issue Date: 2018-06-29T02:48:19Z
Publisher: Proceedings of the 6th PAAMES and AMEC 2014
Abstract: Abstract:Due to the environmental regulations, the fuel efficiency in seaway becomes more important. In this
paper, the effect of ship motion on propeller performance will be evaluated. The influence will be
divided into two different factors. The first one is the influence due to ship positions in seaway and the
induced velocity due to wave itself, and the second one is the interaction between the ship hull and the
propeller. The influence of the ship motion to the propeller performance is then the sum of these
factors. In this paper, the first factor is considered as mainly the potential flow factor, and the second
one is considered as mainly the viscous flow factor. We have assumed these factors are independent to
each other in this paper. For the effects of ship positions and the influence of wave itself, a potential
flow propeller unsteady flow boundary element method is used with a ship motion prediction program
for computations. For computing the interactions between the ship hull and propellers, the viscous
flow RANS method is adopted. Instead of using the real propeller geometry in RANS computations,
the body forces will be used to represent the propeller effects, and it is called the body force method.
A computational example is demonstrated to show that the body force method can successfully
simulate the interaction between the ship hull and a propeller. Computational examples are also
demonstrated for investigating the effects of ship positions in seaway on the propeller performances.
In this paper, we have established the first step to integrate ship motion computational method, the
propeller boundary element method, and the viscous flow RANS method to evaluate the propeller
performance in seaway.
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/47070
Appears in Collections:[系統工程暨造船學系] 演講及研討會

Files in This Item:

There are no files associated with this item.



All items in NTOUR are protected by copyright, with all rights reserved.

 


著作權政策宣告: 本網站之內容為國立臺灣海洋大學所收錄之機構典藏,無償提供學術研究與公眾教育等公益性使用,請合理使用本網站之內容,以尊重著作權人之權益。
網站維護: 海大圖資處 圖書系統組
DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - Feedback