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Research into Configuration and Flow of Wall Oil Film in Bearing Chamber Based on Droplet Size Distribution
Authors:CHEN Guodinga  SUN Hengchaoa  WANG Junb a
Institution:School of Mechanical Engineering,Northwestern Polytechnical University,Xi’an 710072,China bAVIC Commercial Aircraft Engine Co.,Ltd,Shanghai 200030,China
Abstract:The lubrication design and heat transfer determination of bearing chambers in aeroengine require a sufficient understanding of the oil droplet-film interaction and physical characteristic in an oil/air two-phase flow state.The analyses of oil droplet movement,mass and momentum transfer during the impingement of droplet/wall,as well as wall oil film thickness and flow velocity are very important for the bearing chamber lubrication and heat transfer calculation.An integrated model in combination with droplet ...
Keywords:bearing chamber  droplet size  film thickness  oil/air two-phase  aeroengine  lubrication  
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