Abstract: A first-of-its-kind forced-response system identification approach is introduced to measure rotordynamic damping of shaft modes in a full gas turbine aero-engine. The approach involves forced-response modal analysis in ...

Abstract: In this paper, we describe the structures that produce a spiketype route to rotating stall and explain the physical mechanism for their formation. The descriptions and explanations are based on numerical simulations, ...

Abstract: This paper describes the role of tip leakage flow in creating the leading edge separation necessary for the onset of spike-type compressor rotating stall. A series of unsteady multipassage simulations, supported by ...