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传热学

DOI: 10.1615/HeatTransRes.2012005138
pages 545-572

LATTICE BOLTZMANN METHOD FOR SIMULATING CONJUGATE HEAT TRANSFER FROM AN OBSTACLE MOUNTED IN A PARALLEL-PLATE CHANNEL WITH THE USE OF THREE DIFFERENT HEAT INPUT METHODS

Gholamreza Imani
Persian Gulf University
Mehdi Maerefat
Department of Mechanical Engineering, Tarbiat Modares University, P.O. Box 14115-143, Tehran, Iran
Kamel Hooman
Queensland Geothermal Energy Centre of Excellence, School of Mechanical and Mining Engineering University of Queensland, Brisbane, Queensland, AU
Mehdi Seddiq
Department of Mechanical Engineering, Tarbiat Modares University, Tehran, 14115-143, Iran

ABSTRACT

In the present work, investigation of conjugate cooling of an obstacle mounted in a parallel-plate channel is carried out with the aid of the lattice Boltzmann simulation of a laminar incompressible fluid flow and heat transfer. The aim is to develop the lattice Boltzmann conjugate heat transfer formulation, based on on-lattice scheme, at the solid−fluid interfaces for incompressible flows by conducting studies of various cases ,including methods of heating different obstacles. In this way, the effects of the pertinent parameters such as the Reynolds number and solid-to-fluid thermal conductivity ratios on the local Nusselt number around the obstacle periphery are investigated. The results of the present study are compared with those obtained by conventional numerical methods, and good agreement is observed.


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