This review summarizes research concerned with the ingress of hot mainstream gas through
the rim seals of gas turbines. It includes experimental, theoretical, and computational studies …

This paper presents a review of research on turbine rim sealing with emphasis placed on the
underlying flow physics and modelling capability. Rim seal flows play a crucial role in …

A combined computational fluid dynamics (CFD) and experimental study of interaction of
main gas path and rim sealing flow is reported. The experiments were conducted on a two …

An investigation into the effect of stator-rotor hub gap sealing flow on turbine performance is
presented. Efficiency measurements and rotor exit area traverse data from a low speed …

In high-pressure turbines, cool air is purged through rim seals at the periphery of wheel-
spaces between the stator and rotor disks. The purge suppresses the ingress of hot gas from …

This paper presents experimental and computational results using a 1.5-stage test rig
designed to investigate the effects of ingress through a double radial overlap rim-seal. The …

Mass transfer measurements on the endwall and blade suction surfaces are performed in a
five-blade linear cascade with a high-performance rotor blade profile. The effects of purge …

Rotationally induced (RI) ingress is caused by the negative pressure (relative to the external
air) inside the wheel-space of a gas turbine; this negative pressure, which is created by the …

The flow field in a complete one-stage axial-flow turbine with 30 stator and 62 rotor blades is
investigated by large-eddy simulation (LES). To solve the compressible Navier-Stokes …

This paper presents numerical simulations of the unsteady flow interactions between the
main annulus and the disc cavity for an axial turbine. The simulations show the influence of …