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 …

While turbine rim sealing flows are an important aspect of turbomachinery design, affecting
turbine aerodynamic performance and turbine disk temperatures, the present understanding …

Rotating fluids are well-known to be susceptible to waves. This has received much attention
from the geophysics, oceanographic and atmospheric research communities. Inertial waves …

The ingress of hot annulus gas into stator–rotor cavities is an important topic to engine
designers. Rim-seals reduce the pressurized purge required to protect highly stressed …

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 …

Unsteady flow phenomena unrelated to the main gas-path blading have been identified in a
number of turbine rim seal investigations. This unsteadiness has significant influence on the …

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 …

Numerical simulations of turbine rim seal experiments are conducted with a time-dependent,
360 deg computational fluid dynamics (CFD) model of the complete turbine stage with a rim …