強制対流場に設置された多孔性物質の局所伝熱流動に及ぼす影響

概要

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A numerical estimation was performed for the laminar flow and heat transfer by a porous medium in a flow passage with a miter bend. Heat transfer between solid material and fluid was considered in the numerical analysis. The calculations were performed for the Darcy number Da = 1〜2.5×10^<-6>, the ratio of thermal conductivity of solid material and fluid RRM = 1〜1000, the parameter of heat transfer between solid material and fluid H_g = 10〜1000 and the Reynolds number Re = 300. Local heat transfer and dimensionless stream function were compared between the flow with and without porous medium. The behavior of the flow, the solid and gas temperatures and the Nusselt number with these parameters was represented. It was found that the porous medium with low Da, high RRM and H_g should be selected to enhance the local heat transfer.
一般社団法人日本機械学会の論文
1994-03-25