English  |  正體中文  |  简体中文  |  Items with full text/Total items : 26988/38789
Visitors : 2351684      Online Users : 26
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/987654321/24278

Title: Boundary Layer Effect in BEM with High Order Geometry Elements Using Transformation
Authors: Y.M. Zhang;Y. Gu;J.T. Chen
Contributors: NTOU:Department of Harbor and River Engineering
國立臺灣海洋大學:河海工程學系
Keywords: BEM;nearly singular integrals;transformation;high-order elements;elasticity problem
Date: 2009
Issue Date: 2011-10-20T08:11:03Z
Publisher: Computer Modeling in Engineering Science
Abstract: abstract:The accurate evaluation of nearly singular integrals is one of the major concerned problems in the boundary element method (BEM). Although the current methods have achieved great progress, it is often possible only for problems defined in the simplest geometrical domains when the nearly singular integrals need to be calculated. However, engineering processes occur mostly in complex geometrical domains, and always, involve nonlinearities of the unknown variables and its derivatives. Therefore, effective methods of dealing with nearly singular integrals for such practical problems are necessary and need to be further investigated. In this paper, a general strategy based on a nonlinear transformation is introduced and applied to evaluate the nearly singular integrals in two dimensional (2D) elasticity problems. The proposed nonlinear transformation method can figure out the rapid variations of nearly singular kernels and extremely high accuracy of numerical results can be achieved without increasing other computational efforts. The accuracy and efficiency of the method are demonstrated through three examples that are commonly encountered in the applications of the BEM.
Relation: 45(3), pp.227-248
URI: http://ntour.ntou.edu.tw/handle/987654321/24278
Appears in Collections:[河海工程學系] 期刊論文

Files in This Item:

File Description SizeFormat
index.html0KbHTML219View/Open


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