INFLUENCE OF INLET GUIDE VANE WAKES ON PERFORMANCE AND STABILITY OF A TRANSONIC COMPRESSOR

摘要

The transonic compressor test rig of Technische Universitaet Darmstadt (TUD) is fitted with an 1.5 stage compressor. The variable inlet guide vanes allow the investigation of the influence of their wakes on the stability and performance of the transonic compressor. The paper describes the wake influence by means of rake, probe, and unsteady wall pressure measurements. For the investigation the IGV-setting is varied, whereas the inflow condition for the rotor is kept constant by speed adjustment.