斜流ポンプ羽根車の後縁形状修正によるキャビテーション損傷防止策の検証

DOI Web Site

書誌事項

タイトル別名
  • Verification of Cavitation Damage Prevention of Mixed Flow Pump Impeller by Trailing Edge Shape Modification
  • シャリュウ ポンプ ハネグルマ ノ コウエン ケイジョウ シュウセイ ニ ヨル キャビテーション ソンショウ ボウシサク ノ ケンショウ

この論文をさがす

抄録

<p>Among mixed flow pumps used in various applications, movable-blade type mixed flow pumps have advantages, that is, maximizing the pump efficiency and the suction performance by adjusting the blade angle appropriate to the operating discharge flow rate. However, we have experienced the severe cavitation erosion in the impeller of this type of pump. In the present study, we firstly conducted the numerical flow simulation of CFD of the entire pump to examine if it can predict the occurrence of cavitation and the erosion location as well as pump performance. The results were compared with those of pump performance tests and visualization. In addition, on the basis of the pressure distribution obtained by numerical simulation of the impeller alone, we investigated the cause of erosion and the measures to avoid the erosion. Finally, it was reported that the new impeller reflecting the findings was confirmed to be successful; the erosion was avoided as expected.</p>

収録刊行物

  • ターボ機械

    ターボ機械 48 (2), 78-84, 2020

    一般社団法人 ターボ機械協会

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ