Effect of the Impeller Outlet Angle on Radial Thrust of Single-Blade Centrifugal Pump(Fluids Engineering)

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  • 一枚羽根遠心ポンプのラジアルスラストに及ぼす羽根出口角の影響(流体工学,流体機械)
  • 一枚羽根遠心ポンプのラジアルスラストに及ぼす羽根出口角の影響
  • イチマイ バネ エンシン ポンプ ノ ラジアルスラスト ニ オヨボス ハネ デグチカク ノ エイキョウ

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Single-blade centrifugal pump is widely used as a sewage pump. However, a single-blade is acted on by a large thrust during the pump operation because of the geometrical asymmetry of the impeller. Therefore when the reliability of the pump is secured, it is necessary to grasp a radial thrust quantitatively and elucidate the behavior and the dominant factors. This study investigated the radial thrust acting on two kinds of single-blade centrifugal impeller of different impeller outlet angle by an experiment and CFD analysis. Furthermore, as for the radial thrust to act on two kinds of impellers, the radial thrust was modeled by a combination of three components, unsteady, momentum and pressure components. As a result, the effect of the impeller outlet angle on the radial thrust and the each divided components was clarified.

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