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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
电子邮箱：xwgao@dlut.edu.cn
A Modified Conjugate Gradient Method for Transient Nonlinear Inverse Heat Conduction Problems: A Case Study for Identifying Temperature-Dependent Thermal Conductivities
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论文类型：期刊论文
发表时间：2014-09-01
发表刊物：JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME
收录刊物：SCIE、EI、Scopus
卷号：136
期号：9
ISSN号：0022-1481
关键字：modified conjugate gradient method; inverse problem; transient nonlinear heat conduction; complex-variable-differentiation method
摘要：Despite numerous studies of conjugate gradient methods (CGMs), the "sensitivity problem" and the "adjoint problem" are inevitable for nonlinear inverse heat conduction problems (IHCPs), which are accompanied by some assumptions and complicated differentiating processes. In this paper, a modified CGM (MCGM) is presented for the solution of a specified transient nonlinear IHCP, to recover temperature-dependent thermal conductivities for a case study. By introducing the complex-variable-differentiation method (CVDM) for sensitivity analysis, the sensitivity problem and the adjoint problem are circumvented. Five test examples are given to validate and assess the performance of the MCGM.