|
|
|
| Finite element analysis for the effective thermal conductivity of copper foam |
| LI Yu，SHEN Wei，ZHAO Peng，PU Yu-ping |
| （High Temperature Materials Research Institute， Central Iron & Steel Research Institute， Beijing 100081， China） |
|
|
|
|
Abstract With the aid of X-ray micro-computed tomography and digital image processing technology， three-dimensional structure of copper foam prepared by electro deposition process was reconstructed. Furthermore， a simplified finite element model of copper foam was proposed， which can reflect the structure of copper foam more truly. On the basis of Fourier heat conduction equation， the finite element method was applied in finite element analysis for the effective thermal conductivity of copper foam. In the meanwhile， a quantitative relation between effective thermal conductivity and porosity of the copper foam was established， and the relationship between the thermal stress and the single cell model of copper foam was studied.
|
|
Received: 08 October 2016
Published: 18 April 2018
|
|
|
|
| [1] 刘培生，陈祥. 泡沫金属[M].中南大学出版社, 2012.[2] 于英华，梁冰，李智超. 多孔泡沫金属研究现状及分析[J]. 青岛建筑工程学院学报, 2003, 24(1): 54-56.[3] 曹立宏，马颖. 多孔泡沫金属材料的性能及其应用[J]. 甘肃科技, 2006, 22(6): 117-119.[4] 马明阳. 泡沫铝中高温有效导热系数与线膨胀系数的实验和理论研究[D]. 中国科学技术大学, 2015.[5] J. W. Paek，B. H. Kang，S. Y. Kim，等. Effective Thermal Conductivity and Permeability of Aluminum Foam Materials 1[J]. International Journal of Thermophysics, 2000, 21(2): 453-464.[6] 王芳，张治民，吕猛，等. LED泡沫金属散热器的散热性能研究[J]. 铸造技术, 2014, (1): 35-37.[7] 刘双，张博明，解维华. 开孔金属泡沫有效热导率的理论分析与实验研究[J]. 功能材料, 2009, 40(5): 794-797.[8] A. Bhattacharya，V. V. Calmidi，R. L. Mahajan. Thermophysical properties of high porosity metal foams[J]. International Journal of Heat & Mass Transfer, 2002, 45(5): 1017-1031.[9] 张文杰. 热辐射效应对泡沫金属有效导热系数的影响[D]. 哈尔滨工业大学, 2011.[10] 赵鹏，浦玉萍. 超声波对电沉积泡沫铜结构及性能的影响冰[J]. 中国表面工程, 2008, 21(1)[11] 赵鹏，浦玉萍，黄春晖，等. 超声波对聚氨酯泡沫塑料化学镀铜的影响[J]. 材料工程, 2008, (4): 43-46.[12] 朱光俊. 传输原理[M].冶金工业出版社, 2009.[13] 杨肖虎，邝九杰，白佳希，等. 高孔隙率通孔金属泡沫有效导热系数的实验和理论研究[J]. 西安交通大学学报, 2014, 48(4): 79-84.[14] 杜洪雨. 多孔陶瓷材料热传导性能模拟计算与测试方法研究[D]. 哈尔滨工业大学, 2009.[15] 杨肖虎，王文斌，张钱城，等. 梯度闭孔泡沫金属有效导热系数-等效弹性模量预测的关联模型[C]. 2015:[16] 张文杰，谭建宇，赵军明，等. 考虑热辐射效应的泡沫金属有效导热系数数值分析[J]. 中国电机工程学报, 2012, 32(2): 104-109.[17] 王济平，张新铭，凌娅，等. 多孔泡沫介质有效导热系数的研究[J]. 炭素技术, 2013, 32(1): 13-16.[18] 刘晓丹，冯妍卉，杨雪飞，等. 泡沫金属的热分析[J]. 北京科技大学学报, 2009, 31(7): 895-900.[19] K. Boomsma，D. Poulikakos. On the effective thermal conductivity of a three-dimensionally structured fluid-saturated metal foam[J]. International Journal of Heat & Mass Transfer, 2001, 78(12): 827-836.[20] 谷沁洋. 非均质多孔泡沫材料导热性能的研究[D]. 重庆大学, 2013.[21] 张新铭，王济平，谷沁洋. 孔隙随机结构对非均质多孔泡沫导热性能的影响[J]. 化工学报, 2014, (3): 879-883.[22] X Wang，F Thauvin，KK Mohanty. Non-Darcy flow through anisotropic porous media[J]. Chemical Engineering Science, 1999, 54(12): 1859-1869. |
|
|
|
2018, Vol. 28 
