English  |  正體中文  |  简体中文  |  Items with full text/Total items : 26988/38789
Visitors : 2348691      Online Users : 34
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/987654321/32151

Title: Improving the Accuracy of DRBEM Wave Model by Using Radial Basis Function
Authors: J.-R. Chang;C.-M. Chang
Contributors: NTOU:Department of Harbor and River Engineering
國立臺灣海洋大學:河海工程學系
Keywords: Dual Reciprocity Boundary Element Method, radial basis function, Homma island, thin-plate splines
Date: 2007-01
Issue Date: 2012-06-15T07:30:03Z
Publisher: Proceedings of the Seventeenth International Offshore and Polar Engineering Conference
Abstract: abstract:Since 1982 the dual reciprocity boundary element method was published by Nardini Brebbia, it was used to solve many engineering problems successfully. However, how to choose the radial basis function is an important issue, which was discussed recently and many researches were published. M.A. Golberg C.S Chen provided a mathematical foundation for ad-hoc 1+r and suggested that thin plate splines was the better choice for two-imensional approximation than the ad-hoc 1+r distance functions. However, Agnantiaris et al. indicated that TPS showed little or no improvement of accuracy over the conventional ad-hoc 1+r. In their study, Agnantiaris et al. examined how the RBF affected the accuracy in the numerical model.Although RBF became a great concern in this field of computation techniques, it still remains unsettled equation so far. According to the reasons mentioned above, we investigated the influence in the change of RBF and evaluated the relative errors of all numerical results. The numerical model of this paper, based on mildslope equation and solving by DRBEM, was developed to study the wave distribution around Homma island. By replacing the ad-hoc 1+r with TPS, all numerical results were compared with analytical solutions and all relative errors of TPS were below 6%. The present results demonstrated that TPS have significant improvement of DRBEM accuracy.
Relation: pp.2296-2301
URI: http://ntour.ntou.edu.tw/handle/987654321/32151
Appears in Collections:[河海工程學系] 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