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Computational study of heat transfer in honeycomb structures accounting for gaseous pore filler

Vesenjak, Matej and Žunic, Zoran and Ren, Zoran and Öchsner, Andreas (2008) Computational study of heat transfer in honeycomb structures accounting for gaseous pore filler. Defect and Diffusion Forum, 273 . 699 -706. ISSN 1012-0386

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Official URL: http://dx.doi.org/10.4028/www.scientific.net/DDF.2...

Abstract

Thermal properties of honeycomb structures with different cell shapes are investigated in this paper. The influence of cell shape, relative density and pore gases on the macroscopic honeycomb thermal properties is investigated by means of transient dynamic computational simulations. The ANSYS CFX code is used to evaluate the heat conduction trough the base material and the filler gas, as well as the convection in gas filler. The computational results clearly show a strong influence of the filler gas on heat conduction and macroscopic thermal properties of analyzed honeycomb structures, which is attributed to low relative density of the cellular structure. Additionally, the influence of considered relative densities is more prominent than the influence of cell shape. The evaluated results are valuable for further development of homogenization models of heat transfer in honeycomb structures accounting for gaseous pore fillers.

Item Type:Article
Uncontrolled Keywords:cell shape, heat conduction, heat convection, honeycomb structure, pore gas influence
Subjects:T Technology > TJ Mechanical engineering and machinery
Divisions:Mechanical Engineering
ID Code:12824
Deposited By: Mrs Liza Porijo
Deposited On:30 Jun 2011 10:11
Last Modified:30 Jun 2011 10:11

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