Abstract: The paper presents an experimental and computational study of the unsteady behavior of the rotor hub passage vortex in an axial lowpressure turbine. Different flow structures are identified as having an effect on the size, ...

Abstract: This paper addresses the unsteady formation of secondary flow structures inside a turbine rotor passage. The first stage of a twostage, lowpressure turbine is investigated at a Reynolds Number of 75,000. The design represents ...