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多孔介质期刊
影响因子: 1.061 5年影响因子: 1.151 SJR: 0.504 SNIP: 0.671 CiteScore™: 1.58

ISSN 打印: 1091-028X
ISSN 在线: 1934-0508

多孔介质期刊

DOI: 10.1615/JPorMedia.v13.i6.10
pages 497-510

COCURRENT GAS-LIQUID FLOW IN METAL FOAM: AN EXPERIMENTAL INVESTIGATION OF PRESSURE GRADIENT

Jean-Philippe Bonnet
M2P2 UMR CNRS 6181, Université Paul Cézanne, Europôle de l'Arbois, Bátiment Laennec, Hall C,13545 Aix en Provence Cedex 4, France
Frederic Topin
Polytech Marseille, Laboratoire IUSTI, UMR CNRS 7343, Technopole de Chateau Gombert, 5 rue Enrico Fermi, 13453 Marseille Cedex 13, France
Jerome Vicente
lnstitut Universitaire des Systemes Thermiques Industriels (IUSTI-CNRS-UMR 6595), Aix-Marseille Universite Technopole de Chateau-Gombert
Lounes Tadrist
Aix-Marseille Universite, CNRS, Laboratoire IUSTI, UMR 7343, Marseille 13453, France

ABSTRACT

Metal foams have a relatively large "fluid/solid" contact area (m2 m−3) as well as small pressure drops due to their open structure. They may be used for many applications, such as in chemical reactors for the deposition of a catalyst. Gas and liquid cocurrent flows through this solid foam packing are investigated. Sample pore sizes are in the range of 400−2500 μm. The influence of pore size and gas and liquid mass flow rate density on the pressure gradient is experimentally investigated, and flow regimes are observed (bubbly, pulsating, and trickle flow). The reduced pressure gradient, defined as the two-phase multiplier by Lockhart and Martinelli formalism, allows the gathering and comparing of results obtained for all samples. Although the pore size range is very wide, the two-phase multiplier does not reveal any significant discrepancy between all the tested samples. Moreover, a correlation with glass-packed beds may reasonably be used to predict the pressure drop in metal foam (±25%).


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