Numerical DPM Model for Two-Phase Flow in Aero-Engine Bearing Chamber
The main bearing chamber is a major part of the lubrication system in aero-engine, it is important to know the influence of operation parameters on air/oil two-phase flow, so as to optimize the design of aero-engine lubrication system. The air/oil two-phase flow in a simplified bearing chamber model in an aero-engine is simulated by means of discrete phase model (DPM) and wall-film model with CFD approach. The simulation results coincide with the existing experimental data. The oil film thickness and concentration of droplets in bearing chamber are presented at different rotational speeds and different lubricating oil flow rates.
Daoguo Yang, Tianlong Gu, Huaiying Zhou, Jianmin Zeng and Zhengyi Jiang
R. S. Xu et al., "Numerical DPM Model for Two-Phase Flow in Aero-Engine Bearing Chamber", Advanced Materials Research, Vols. 201-203, pp. 2267-2270, 2011