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Heat Transfer Research
インパクトファクター: 0.404 5年インパクトファクター: 0.8 SJR: 0.264 SNIP: 0.504 CiteScore™: 0.88

ISSN 印刷: 1064-2285
ISSN オンライン: 2162-6561

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Heat Transfer Research

DOI: 10.1615/HeatTransRes.2017013424
pages 77-90

INTERFACIAL CONVECTIVE HEAT TRANSFER FOR RANDOMLY GENERATED POROUS MEDIA

Eren Ucar
Mechanical Engineering Department, Izmir Institute of Technology, Urla 35430, Izmir, Turkey; Department of Mathematics, University of Bergen, P.O. 7803, Bergen 5020, Norway
Moghtada Mobedi
Mechanical Engineering Department, Izmir Institute of Technology, Urla 35430, Izmir, Turkey; Shizuoka University, Faculty of Engineering, 3-5-1 Joho-ku, Naka-ku, Hamamatsu 432-8561, Japan
Azita Ahmadi
I2M − TREFLE Department, UMR CNRS 5295, Arts et Metiers ParisTech, Esplanade des Arts et Metiers, 33405 Talence Cedex, France

要約

Heat and fluid flow in 20 random porous media is investigated by using the Monte Carlo (MC) procedure. Each porous medium consists of long square rods distributed randomly in flow direction. The continuity, momentum, and energy equations are solved for a row of porous media representing the entire domain of a random porous medium. The microstructure properties of each random porous medium which are the mean and standard deviations of the Voronoi areas, the nearest neighbor distance and orientation are obtained. The rods in the domain are classified into three groups as blocker, active, and passive rods according to their effects on the penetration of heat in porous media. The interfacial convective heat transfer coefficients for each rod and entire porous medium are calculated and plotted for different Reynolds numbers. A characteristic length based on the microstructure properties of the generated porous media is defined, and three correlations relating to the upper limit, lower limit, and mean of the overall interfacial convective heat transfer coefficient are proposed.


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