A211 三次元微視的数値計算に基づく充填層の流動抵抗と熱分散の予測(OS-3:多孔質体内の伝熱(I))

概要

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Three-dimensional numerical simulation has been conducted to determine the permeability, Forchheimer coefficient, thermal dispersion coefficient and interfacial heat transfer coefficient within packed bed in porous medium. A macroscopically uniform flow is assumed to pass through a collection of spheres placed regularly in an infinite space, where a temperature gradient is imposed to flow direction. Due to the periodicity of the model, only one structural unit can be taken for a calculation domain to resolve an entire domain of porous medium. The numerical results thus obtained are integrated over a unit structure to determine the permeabilty and dispersion coefficient. These macroscopic values agree well with empirical Ergun equation and Wakao-Kaugei equation.
一般社団法人日本機械学会の論文
2010-10-29