繊維集合体の透過係数--コイルモデルによる検討

概要

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Drag problems of fluid flow passsing through fiber assembly which was made of short copper coils were studied experimentally. For the flow in which Darcy' s law is true, linear relations between pressure drop and mean velocity were obtained, and permeability constants and drag coefficient were decided from the relations. The experimental results were compared with two theoretical curves deriving from the cell model method, the one is for assembly of spheres and the other for assembly of cylinders. It was found that the observed plots were distributed in the region bounded by the two curves under the condition that the volume fraction range of porous material is 0.1 to 0.6.
社団法人日本繊維機械学会の論文