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Influence of morphology on flow law characteristics in open-cell foams: An overview of usual approaches and correlations

[+] Author and Article Information
Prashant Kumar

IUSTI, CNRS UMR 7343, Aix-Marseille University, Marseille, France 5, Rue Enrico Fermi, Technopole de Château Gombert, 13453, Marseille Cedex 13, France
prashant.kumar@etu.univ-amu.fr

Frederic Topin

IUSTI, CNRS UMR 7343, Aix-Marseille University, Marseille, France 5, Rue Enrico Fermi, Technopole de Château Gombert, 13453, Marseille Cedex 13, France
frederic.topin@univ-amu.fr

1Corresponding author.

ASME doi:10.1115/1.4036160 History: Received August 03, 2015; Revised February 10, 2017

Abstract

Foam structures have been a subject of intensive research since the last decade. The pore space in open-cell foam is interconnected, forming perforated channels of varying cross sectional areas where fluid can flow. Knowledge of pressure drop induced by these foam matrices is essential for successful design and operation of high performance industrial systems. In this context, analytical correlations were derived for the determination of Darcian permeability (K_D) and Forchheimer inertia coefficient (C_For) in open-cell foams of different strut shapes. It has been shown that the flow law characteristics are strongly dependent on strut shape, strut characteristic dimension and length. The applicability of new correlations was examined by comparing and validating the numerical and experimental flow law characteristics data against the predicted ones. An excellent agreement has been observed for the foam structures of different materials and variable texture in a wide range of porosity and Reynolds number.

Copyright (c) 2017 by ASME
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