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Effective thermal conductivity of graded nonlinear composites with heat contact resistance
Wei, En-Bo; Poon, Y. M.
2006-12-11
发表期刊PHYSICS LETTERS A
ISSN0375-9601
卷号359期号:6页码:685-692
文章类型Article
摘要The perturbation expansion method is used to find the effective thermal conductivity of graded nonlinear composites having thermal contact resistance on the inclusion surface. As an example, we have studied the graded composites with cylindrical inclusions immersed in a homogeneous matrix. The thermal conductivity of the cylindrical inclusion is assumed to have a power-law profile of the radial distance r measured from its origin. For weakly nonlinear constitutive relations between the heat flow density q and the temperature field T, namely, q = -mu del T - chi vertical bar del T vertical bar(2) del T, in both the inclusion and the matrix regions, we have derived the temperature distributions using the perturbation expansion method. A nonlinear effective medium approximation of graded composites is proposed to estimate the effective linear and nonlinear thermal conductivities. by considering the temperature singularity on the inclusion surface due to the heat contact resistance. (c) 2006 Elsevier B.V. All rights reserved.; The perturbation expansion method is used to find the effective thermal conductivity of graded nonlinear composites having thermal contact resistance on the inclusion surface. As an example, we have studied the graded composites with cylindrical inclusions immersed in a homogeneous matrix. The thermal conductivity of the cylindrical inclusion is assumed to have a power-law profile of the radial distance r measured from its origin. For weakly nonlinear constitutive relations between the heat flow density q and the temperature field T, namely, q = -mu del T - chi vertical bar del T vertical bar(2) del T, in both the inclusion and the matrix regions, we have derived the temperature distributions using the perturbation expansion method. A nonlinear effective medium approximation of graded composites is proposed to estimate the effective linear and nonlinear thermal conductivities. by considering the temperature singularity on the inclusion surface due to the heat contact resistance. (c) 2006 Elsevier B.V. All rights reserved.
关键词Effective Thermal Conductivity Graded Composite Nonlinear Composite
学科领域Physics, Multidisciplinary
DOI10.1016/j.physleta.2006.07.023
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收录类别SCI
语种英语
WOS记录号WOS:000242750600028
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被引频次:9[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.qdio.ac.cn/handle/337002/5310
专题海洋环流与波动重点实验室
作者单位1.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China
2.Hong Kong Polytech Univ, Dept Appl Phys, Hong Kong, Hong Kong, Peoples R China
3.Hong Kong Polytech Univ, Ctr Mat Res, Hong Kong, Hong Kong, Peoples R China
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Wei, En-Bo,Poon, Y. M.. Effective thermal conductivity of graded nonlinear composites with heat contact resistance[J]. PHYSICS LETTERS A,2006,359(6):685-692.
APA Wei, En-Bo,&Poon, Y. M..(2006).Effective thermal conductivity of graded nonlinear composites with heat contact resistance.PHYSICS LETTERS A,359(6),685-692.
MLA Wei, En-Bo,et al."Effective thermal conductivity of graded nonlinear composites with heat contact resistance".PHYSICS LETTERS A 359.6(2006):685-692.
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