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Numerical and experimental investigation on two-phase flow and oil capture efficiency of under-race lubrication for high-speed bearings

Physics of Fluids
The increasing rotational speed and temperature levels in modern aeroengines impose higher demands on the lubrication and cooling design of the roller bearings supporting the main shaft. To design a compact and efficient under-race lubrication system, a comprehensive understanding of the characteristics of oil–air two-phase flow and the variations in ...
Le Jiang   +6 more
openaire   +3 more sources

Numerical Investigations Into the Oil Capture Efficiency of a Curve-Bladed Scoop System

Volume 2C: Turbomachinery, 2020
Abstract In civil aero-engines, the shafts are supported by oil-lubricated bearings. These bearings require sufficient lubrication to provide cooling and ensure the reliability of the engine. In some engine configurations, it is not possible to supply oil to the bearings via the traditional direct jet injection method.
Joshua Lee   +2 more
openaire   +2 more sources

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