Experimental and Numerical study on Heat Transfer between Two Spheres

Kuwagi, K., Hirano, H. and Takami, T.

Visualization, Heat transfer, Fluidized bed, Particle, PIV
The experimental and numerical study on the heat transfer between two spheres was carried out by visualization of heat and fluid flow. The experimental data of heat transfer were investigated from the view point of the mechanism of heat transfer, i.e., convection, conduction and contact. The experimental results were compared with those estimated using previously proposed equations. Although the computed contact heat transfer using the method by Rong and Horio [4] agreed poorly with the experimental one, the computed values approach more realistic ones using the thermal resistance model considering the effect of surface roughness. Numerical simulation was also performed. The simulated flow field agreed qualitatively with the visualized one.

JP Journal of Heat and Mass Transfer

Pushpa Publishing House

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