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个人信息Personal Information
教授
博士生导师
硕士生导师
性别:女
毕业院校:东北大学
学位:博士
所在单位:力学与航空航天学院
学科:航空宇航推进理论与工程. 热能工程. 计算力学
办公地点:综合实验1号楼(海宇楼)203A
联系方式:miaocui@dlut.edu.cn
电子邮箱:miaocui@dlut.edu.cn
A direct method for evaluating arbitrary high-order singular curved boundary integrals
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论文类型:期刊论文
发表时间:2013-10-22
发表刊物:WIT Transactions on Modelling and Simulation
收录刊物:EI
卷号:56
页面范围:335-351
ISSN号:1743355X
摘要:In this paper, an efficient method for numerical evaluation of all kinds of singular curved boundary integrals from 2D/3D BEM analysis is proposed based on an operation technique on a projection line/plane. Firstly, geometry variables on a curved line or surface element are expressed by parameters on the projection line/plane, and then all singularities are analytically removed by expressing the non-singular part of the integration kernel as a power series in a local distance defined on the projection line/plane. Also, a set of important relationships computing derivatives of intrinsic coordinates with respect to local orthogonal coordinates is derived. A few examples are provided to demonstrate the correctness and the stability of the proposed method. © 2013 WIT Press.