A method to calculate the effective thermal conductivity of spherical particle-laden composite

2nd International Conference on Frontiers of Materials Synthesis and Processing

Zhou, Li^1^2 ; Yang, Liu^1

Wu Han Business University, Wuhan

430056, China^1

School of Civil Engineering and Mechanics, Huazhong University of Science and Technology, Wuhan

430074, China^2

关键词: Accurate calculations;    Effective thermal conductivity;    Finite element simulations;    Maxwell models;    Nielsen model;    Relative errors;    Spherical particle;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/493/1/012049/pdf
DOI  :  10.1088/1757-899X/493/1/012049

来源: IOP

【 摘 要 】

Accurate calculation of the effective thermal conductivity of composite is of great importance. Based on the heat conduction differential equation, the effective thermal conductivity of spherical particle-laden composite was derived in this paper. To validate the calculation method, comparisons with the Maxwell model, Karayacoubian model, Lewis-Nielsen model, Woodside-Messmer model, and the experimental data were conducted. It was found that the results of the present method are closer to the experimental data. Further validation was conducted with comparison to the finite-element simulations. The effective thermal conductivity of a matrix cube with a spherical particle was simulated and calculated. The results obtained by these two methods were consistent with the relative error within 7%.