完全三次元解法によるスクリュー式遠心ポンプ内の流れと混入粒子の流れ解析

概要

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Employment of screw-type centrifugal pumps is increasing in many fields of engineering, but the flow behavior in the impeller still remains unknown and criteria for pump design have not been established. This paper concerns the evaluation of he flows in a screw-type centrifugal pump by the use of a three-dimensional finite-element method. The calculated flows are considerably three-dimensional within the impeller. In this paper, three-dimensional behaviors of air bubbles and solid particles entrained in the impeller are also numerically clarified by solving the equations of motion of a particle. The bubbles passing near the boss flow back to the impeller inlet along the pressure side of the blade. The solid particles flow out with less chance of impinging on the boundary wall.
一般社団法人日本機械学会の論文
1989-12-25