Paper Title:
Calculations of the Thermal Conductivity of Porous Materials
  Abstract

In this paper, the geometrical effective thermal conductivity of porous materials is investigated based on two different approaches: the finite element method as a representative for numerical approximation methods and an analytical method for 2D homogenised models based on a solution of the respective boundary value problem. It is found that the relative conductivity is practically independent of the specific shape or topology of the inclusions. Only the morphology (closed-cell or open-cell) of the structure slightly influences the conductivity. Furthermore, it is shown that a small perturbation of the circular inclusions of 2D models increases the effective conductivity.

  Info
Periodical
Materials Science Forum (Volumes 514-516)
Edited by
Paula Maria Vilarinho
Pages
754-758
DOI
10.4028/www.scientific.net/MSF.514-516.754
Citation
T. Fiedler, E. Pesetskaya, A. Öchsner, J. Grácio, "Calculations of the Thermal Conductivity of Porous Materials", Materials Science Forum, Vols. 514-516, pp. 754-758, 2006
Online since
May 2006
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