The choice of turbulence model can have a strong impact on results for many
turbomachinery zones. Palliative corrections to them and also transition modeling can have …

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 …

Ingress of hot gas through the rim seals of gas turbines can be modeled theoretically using
the so-called orifice equations. In Part I of this two-part paper, the orifice equations were …

This paper describes a new research facility which experimentally models hot gas ingestion
into the wheel-space of an axial turbine stage. Measurements of the CO2 gas concentration …

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 …

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 …

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 …

In high-pressure turbines, a small amount of cold flow is ejected at the hub from the cavity
that exists between the stator and the rotor disk. This prevents the ingestion of hot gases into …

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 …