アセパレータによる軸流送風機の失速抑制メカニズムに関する数値解析

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タイトル別名
  • Numerical Analysis of Mechanism Stall Suppression of an Axial Flow Fan with Air-Separator
  • エアセパレータによる軸流送風機の失速抑制メカニズムに関する数値解析
  • エアセパレータ ニ ヨル ジク リュウソウフウキ ノ シッソク ヨクセイ メカニズム ニ カンスル スウチ カイセキ

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抄録

Air-separators are one of effective methods to suppress stall phenomena of axial flow fans. In the present study, numerical investigations are carried out to clarify the stall suppression mechanisms of the air-separator using an axial flow fan with and without the air-separator which are examined experimentally by Yamaguchi et al. The comparisons between numerical and experimental results show reasonable agreements. The results show that a backflow region around the rotor tip is removed at the low flow rate and that the blade loading around the blade tip is increased by the air-separator. Consequently the pressure performance at the low flow rate is improved significantly. Additionally, influences of flow rate through the air-separator and air-separator geometries are also examined to clarify the air-separator effects.

収録刊行物

  • ターボ機械

    ターボ機械 43 (3), 138-149, 2015

    一般社団法人 ターボ機械協会

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