AM05-15-004 軸流圧縮機動翼列の旋回失速初生時における非定常渦流れ場(流体機械1,一般講演)

概要

論文の詳細を見る
Unsteady vortical flow field of rotating stall inception in an axial flow compressor rotor has been investigated by experimental fluid dynamics (EFD) and computational fluid dynamics (CFD). Instantaneous distributions of the casing wall pressure were obtained experimentally by 'Synchronous Field Measurement' with time interpolation. Unsteady three-dimensional separated and vortical flow structure was captured by unsteady Navier-Stokes flow simulation. By combining EFD and CFD, it was found that the spiral-type breakdown of the tip leakage vortex occurred at near-stall condition, and the cause of rotating stall was the leading edge separation on the rotor. Furthermore, the stall cell was found to consist of a tornado-type separation vortex linking from the rotor blade suction surface to the casing at rotating stall inception.
日本流体力学会の論文
2005-09-05