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Heat Flow of Round Jet Impinging Aluminum Foam Mounted on the Heated Plate with Constant Heat Flux  

Han, Young-Hee (School of Mechanical Engineering, Chungbuk National University)
Lee, Kye-Bock (School of Mechanical Engineering, Chungbuk National University)
Lee, Chung-Gu (School of Mechanical Engineering, Chungbuk National University)
Publication Information
Journal of Energy Engineering / v.18, no.2, 2009 , pp. 108-113 More about this Journal
Abstract
An experimental study of jet impingement on aluminum foam mounted on the surface with constant heat flux is conducted with the presentation of the heat transfer rate measured when jet impinges normally to a flat plate. Effects of pore density, foam thickness and Reynolds number on the heat transfer are analyzed. Experimental results show that the significant enhancement in Nu is obtained when the aluminum foam is mounted on the heated plate and that the increase in the heat transfer due to the porous material insertion is dominated by both the increase in the heat transfer area and the decrease in the momentum flux resulted from the pressure drop.
Keywords
Pore density; Impinging jet; Heat transfer area; Pressure gradient;
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