多孔質体内の非ニュートン流体の熱流動 : 第1報,流動の二次元数値モデル

抄録

Numerical calculations have been carried out to simulate comlex non-Newtonian fluid motion within a porous medium. A collection of square rods placed regularly in a region of infinite extent has been proposed as a two-dimensional numerical model of porous structure. The numerical simulation results obtained at a microscopic level with the power-law non-Newtonian model are processed to extract the macroscopic hydrodynamic characteristics in terms of the Darcian velocity and intrinsic average pressure. The macroscopic results in terms of the apparent permeability agree well with the results of the semi-empirical formula proposed by Christopher and Middleman.