軸流回転翼列における翼先端すきま流れの構造

概要

論文の詳細を見る
Detailed measurements of tip clearance flow were made in an isolated axial flow compressor rotor with various tip clearances. The structure of the clearance flow was clarified by a phase-locked multi-sampling technique with a slanted hotwire in the clearance and with a high response pressure sensor on the casing wall. In the case of small clearance, leakage jet flow interacts violently with through flow near the leading edge and a rolling-up leakage vortex decays downwards. As the clearance increase, a stronger leakage vortex appears at a more downward location and a reverse flow appears due to the leakage vortex. A scraping vortex is observed at the downstream pressure side of the blade only for small tip clearance, and a horse-shoe vortex comes into existence at upstream part inside the rotor for every tip clearance.
一般社団法人日本機械学会の論文
1988-02-25