Buoyancy-induced flow occurs in the cavity between two corotating compressor disks when
the temperature of the disks and shroud is higher than that of the air in the cavity. Coriolis …

Increasing pressures in gas-turbine compressors, particularly in aeroengines where the
pressure ratios can be above 50: 1, require smaller compressor blades and an increasing …

Considerable progress in development and application of computational fluid dynamics
(CFD) for aeroengine internal flow systems has been made in recent years. CFD is regularly …

This paper presents large-eddy and direct numerical simulations of buoyancy-driven
convection in sealed and open rapidly rotating cavities for Rayleigh numbers in the range …

This paper describes the modeling of typical secondary air system elements such as rotating
orifices, seals, and flow passages with heat and work transfer from the surrounding surfaces …

Experimental measurements of heat transfer are made from the inner peripheral surface of a
rotating test rig designed to be similar to a gas turbine high pressure compressor internal air …

The change in compressor blade-tip clearance across the flight cycle depends on the
expansion of the rotor, which in turn depends on the temperature and stress in the disks. The …

The buoyancy-affected flow in rotating disk cavities, such as occurs in compressor disk
stacks, is known to be complex and difficult to predict. In the present work, large eddy …

In compressor inter-disc cavities with a central axial throughflow it is known that the flow and
heat transfer is strongly affected by buoyancy in the centrifugal force field. As a step towards …

The flow and heat transfers inside high-pressure (HP) compressor rotating cavities are
buoyancy driven and are known to be extremely difficult to predict. The experimental data of …