Flows of Air Bubbles and Solid Particles Entrained in a Mixed-Flow Pump

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概要

• 論文の詳細を見る

• If air bubbles or solid particles are entrained in a pump, they will cause poor pump performance and erode the pump itself. This paper concerns theoretical estimations of three-dimensional movements of air bubbles and solid particles entrained in a mixed-flow pump. The particle movements were numerically determined by integrating the equations of motion of an air bubble or a solid particle on a water flow field, which were solved by a finite element method under assumptions of potential flow. Although the air bubbles substantially follow the water streamlines, their trajectories near the pressure surface of the impeller blades shift considerably towards the hub. The solid particles tend to move straight ahead irrespective of water streamline curvature, and they collide with the hub surface.

• 一般社団法人日本機械学会の論文
• 1989-11-15

著者

• Minemura Kiyoshi

  College Of General Education Nagoya University

• NABA Takayuki

  Keihin Product Operations, Toshiba Corporation

• Naba Takayuki

  Keihin Product Operations Toshiba Corporation

関連論文

• Flow of Cavitation Bubbles in a Centrifugal Pump Impeller
• Pressure Distribution In a Centrifugal Impeller Handling Air-Water Mixtures
• Characteristics of Centrifugal Pumps Handling Air-water Mixtures and Size of Air Bubbles in Pump Impellers
• Flows of Air Bubbles and Solid Particles Entrained in a Mixed-Flow Pump

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