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个人信息Personal Information
教授
博士生导师
硕士生导师
任职 : 国家重大专项专家组成员、教育部热防护专业组组长、国际华人计算力学协会理事、中国航空学会理事、中国航空学会强度与设计专业委员会委员、国际边界单元法协会会员、教育部高等学校航空航天类专业教学指导委员会委员
性别：男
毕业院校：Glasgow University
学位：博士
所在单位：力学与航空航天学院
办公地点：海宇楼403A
联系方式：0411-84706332
电子邮箱：xwgao@dlut.edu.cn
A time-domain precise BEM for solving transient heat conduction problems with variable heat conductivities
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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：273-284
ISSN号：1743355X
摘要：In this paper, the Green's function for the Laplace equation is adopted to derive the boundary integral equation for solving transient heat conduction problems with variable heat conductivities and heat sources. As a result, domain integrals are involved in the derived integral equations. Firstly, the radial integration method is used to convert the domain integrals into equivalent boundary integrals. Then, by expanding variables at a discrete time interval, the recursive formulation of the governing equation is derived. Finally, the recursive equation is solved by the radial integration boundary element method. A self-adaptive check technique is carried out to estimate how many expansion terms are needed in a time step size. Numerical results show satisfactory performance. © 2013 WIT Press.