The Influence of Tip Clearance on Performance and Internal Flow Condition of Low Viscous Fluid Food Centrifugal Pump

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  • 低粘度流体食品用遠心ポンプのチップクリアランスが性能と内部流れに及ぼす影響
  • テイネンド リュウタイ ショクヒンヨウ エンシン ポンプ ノ チップクリアランス ガ セイノウ ト ナイブ ナガレ ニ オヨボス エイキョウ

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Abstract

Fluid machineries for fluid food have been used in wide variety of field i.e. transportation, the filling, and improvement of the quality of fluid food. Although, flow conditions of it are quite complicated because fluid food is different from water. Therefore, the design method based on the internal flow conditions is not conducted. In this research, turbo-pump having small number of blade number was used to decrease shear loss and keep wide flow passage. The influence of the tip clearance was investigated by the numerical analysis using the model with and without the tip clearance. In this paper, the influence of the tip clearance on performances and internal flow conditions of turbo-pump using low viscous fluid were clarified by experimental and numerical analysis results. In addition, the design method based on the internal flow was considered. Further, the influences of viscosity on the performance characteristic and internal flow were investigated.

Journal

  • Turbomachinery

    Turbomachinery 40 (10), 577-583, 2012

    Turbomachinery Society of Japan

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