粘弾性流体を用いた多段キャビティを有する複雑流路内の流動特性(反応・多相系非ニュートン,一般講演)

概要

論文の詳細を見る
Two-dimensional numerical computations have been performed in order to investigate flow characteristics in multiple cavities when a visco-elastic fluid is used as a working fluid. Twenty-four cavities were mounted in a one-side surface of a flow path between parallel plates. The Reynolds number, cavity length and depth were set at constant values of 100, 50mm and 20mm, respectively. From the results, it was found that the fluid penetrates into each cavity because the Barus effect occurs in each cavity. On the other hand, the large vortex was formed on each opposite side at each cavity. The pressure loss in the case of visco-elastic fluid becomes 35 times higher than that in case of water due to its high viscosity. However, the viscosity effect on pressure loss was found to be reduced by some vortices effects.
日本流体力学会の論文
2009-09-02