B-9 軸流圧縮機動翼列の旋回失速初生に及ぼす静翼列の影響(空力・圧縮機,一般講演)

概要

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The effects of the stator on the rotating stall inception in an axial flow compressor rotor have been investigated by an EFD/CFD hybrid analysis. It has been found that the flow field in the rear stator greatly influences the inception of rotating stall in the rotor. The CFD analyses are conducted in two ways; a rotor-only-analysis, in which only the rotor field was calculated, and a rotor-stator-analysis, in which not only the rotor field but also the front and rear stator fields were calculated. The rotor-only-analysis resulted in an earlier inception of rotating stall than the rotor-stator-analysis. It is concluded that the low energy fluid on the blade suction surface in the rear stator affected the rotating stall inception.
公益社団法人日本ガスタービン学会の論文
2009-10-21