G0501-6-2 衝撃波管を用いた軸流圧縮機の失速過渡特性に関する研究(回転機械)

概要

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Unsteady flow structure between rotor blade-to-blade passages in a three-stage axial flow compressor is experimentally investigated by detailed measurements of wall pressure fluctuations, unsteady velocities and their wavelet analyses. The feature of the present tested compressor is a shock tube facility connected in series to the compressor outlet in order to apply a compression wave from the compressor downstream. Research attention is focused on the inception and post-stall transient characteristics of surge and rotating stall which occurs simultaneously. The unsteady behavior of the compressor operating point on the performance curve under surging may largely depends on the stall configuration of the compressor blade rows. The unsteady flow filed under coexistence system of surge and rotating stall are also discussed.
2009-09-12