3-DIMENSIONAL FLOW PHENOMENA IN A TRANSONIC, HIGH-THROUGHFLOW, AXIAL-FLOW COMPRESSOR STAGE

A detailed aerodynamic study of a transonic, high-throughflow, single- stage compressor is presented. The compressor stage was comprised of a low-aspect-ratio rotor combined alternately with two different stator designs. Both experimental and numerical studies are conducted to und erstand the details of the complex flow field present in this stage. A erodynamic measurements using high-frequency, Kulite pressure transduc ers and conventional probes are compared with results from a three-dim ensional viscous flow analysis. A steady multiple blade row approach i s used in the numerical technique to examine the detailed flow structu re inside the rotor and the stator passages. The comparisons indicate that many flow field features are correctly captured by viscous flow a nalysis, and therefore unmeasured phenomena can be studied with some l evel of confidence.