Abstract: Abstract. The buoyancy-driven flow inside compressor cavities is three-dimensional and unsteady and features a large range of time and length scales. The temperature and rotation of the fluid core of the cavity are influenced ...

Abstract: Next generation aeroengines will operate at ever-increasing pressure ratios with smaller cores, where the control of blade-tip clearances across the flight cycle is an emerging design challenge. Such clearances are affected ...

Abstract: In an aero-engine compressor, co-rotating discs form cavities that interact with an axial throughflow of secondary air at low radius. In the high-pressure (HP) compressor the shroud is hotter than the throughflow (directed ...

Abstract: The radial growth of compressor discs is strongly influenced by conjugate heat transfer between conduction in the co-rotating discs and buoyancy-driven convection in the rotating fluid core between the discs. An accurate ...