崔苗

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

扫描关注

论文成果

当前位置: 崔苗 >> 科学研究 >> 论文成果

A direct method for evaluating arbitrary high-order singular curved boundary integrals

点击次数:

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.