流体工学部門講演会講演論文集
Online ISSN : 2424-2896
会議情報
0428 低速設計後段動翼を採用した二重反転形軸流ポンプの動翼列間干渉(OS4-4 流体機械の研究開発とそれに関連した複雑流動現象,OS4 流体機械の研究開発とそれに関連した複雑流動現象)
吉村 浩晃曹 琳琳本田 浩範渡邉 聡古川 明徳
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p. _0428-01_-_0428-02_

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An application of contra-rotating rotors to axial flow pump is effective downsizing the pump system. On the other hand, it might cause a significant blade rows interaction between two rotors. Therefore, it should be clarified for stable operation of pump system. This paper presents an experimental investigation of blade rows interaction by casing wall static pressure measurement of a contra-rotating axial flow pump, whose rear rotor has been designed by low speed design method. From the results, the pressure field in the front rotor is found to be significantly influenced by the rear rotor and the flow field of front rotor changes due to the pressure interaction.
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