Abstract
Wake-induced unsteady flow in an axial compressor is analyzed in a quasi-three-dimensional manner by use of the extended two-dimensional flow analysis method in which the wake decay model developed by the authors is incorporated. In this paper, with the application of the newly developed method to the compressor stages which consist of IGV (Inlet Guide Vane) -rotor-stator blade rows, effects of radial variations in wake characteristics and the axial gaps between two rows on the induced aerodynamic forces are specifically investigated. It is accordingly found that the spanwise phase relationship of incoming wakes has significant effects on the wake excitation forces and moment.
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