【摘要】 针对一种扩稳增效的新型处理机匣,实验研究了亚声速单级轴流压气机机匣处理前后的过失速性能的变化。借助于压缩系统的一维逐级可压流的数学模型,发展了一种可用于带机匣处理的压气机失速可恢复性预测程序。数值模拟的结果很好地展示了机匣处理前后失速恢复性地变化,并解释了机匣处理后单级压气机失速恢复性改善的原因。更多还原

【Abstract】 Post-stall performance of a subsonic one-stage compressor with and without a new treated casing was investigated experimentally. The aerodynamic parameters of pre-stall and post-stall and recovery forms from stalled flow were compared. Using an unsteady stage-by-stage compression system modeling technique, the numerical simulation of compressor performance recovery from rotating stall with and without the treated casing was accomplished. The calculation results verified that the method of casing-treated could improve the stalling recoverability of the compressor.更多还原