立軸バルブ水車の渦発生防止に関する水理実験

書誌事項

タイトル別名
  • Hydrographic Model Test on the Prevention against Vortex Occurrence for Vertical Bulb Turbine
  • タテジク バルブ スイシャ ノ ウズ ハッセイ ボウシ ニ カンスル スイリ ジッケン

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説明

A vertical bulb turbine unit with elbow type draft tube has been developed due to avoidance of complicated assembling and long standstill period at overhaul in comparison with conventional horizontal bulb turbine unit. Before designing the prototype vertical bulb unit, hydrographic model test was carried out to establish the ideal design concept for this innovative generating unit.<BR> Froude similarity is not available for vortex occurrence. Consequently, an intake structure without air-entraining vortices under all the flow condition is developed, and it is confirmed that the surge wave at load rejection is not affected harmful influence for other constructions.

収録刊行物

  • ターボ機械

    ターボ機械 37 (6), 373-381, 2009

    一般社団法人 ターボ機械協会

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