多孔質層内の固-液相変化 : 凝固過程におけるフィンの効果

概要

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Since solid/liquid phase-change heat transfer in porous media occurs in many systems, extensive studies have been conducted in the past several years. In such systems, the heat transfer coefficient is usually very small due to a small thermal conductivity in the systems and a large resistance to the fluid flow due to a porous matrix. Therefore, some means to enhance the heat transfer is needed for the systems. In the present study, the effect of fins attached to a heat transfer surface on the heat transfer enhancement for the solidification process has been examined using a simple quasi-steady model and an accurate finite diffence method. The applicability of the quasi-steady model has been checked by comparing the calculated results with experimental ones. In addition, the effects of important nondimensional parameters appearing in the governing equations have been examined using the finite difference method.
一般社団法人日本機械学会の論文
1993-05-25