The work presented forms part of an ongoing investigation, focusing on modeling the motion of a wall oil film present in a bearing chamber and comparison to existing experimental data. The film is generated through the impingement of oil droplets shed from a roller bearing. Momentum resulting from the impact of oil droplets, interfacial shear from the airflow, and gravity cause the film to migrate around the chamber. Oil and air exit the chamber at scavenge and vent ports. A previously reported numerical approach to the simulation of steady-state two-phase flow in a bearing chamber, which includes in-house submodels for droplet-film interaction and oil film motion, has been extended. This paper includes the addition of boundary conditions for the vent and scavenge together with a comparison to experimental results obtained from ITS, University of Karlsruhe. The solution is found to be sensitive to the choice of boundary conditions applied to the vent and scavenge.
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January 2006
Technical Papers
A Numerical Model for Oil Film Flow in an Aeroengine Bearing Chamber and Comparison to Experimental Data
Mark Farrall,
Mark Farrall
University Technology Centre for Gas Turbine Transmission Systems,
University of Nottingham
, University Park, Nottingham, NG7 2RD, UK
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Kathy Simmons,
Kathy Simmons
University Technology Centre for Gas Turbine Transmission Systems,
University of Nottingham
, University Park, Nottingham, NG7 2RD, UK
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Stephen Hibberd,
Stephen Hibberd
University Technology Centre for Gas Turbine Transmission Systems,
University of Nottingham
, University Park, Nottingham, NG7 2RD, UK
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Philippe Gorse
Philippe Gorse
Institut für Thermische Strömungsmaschinen,
University of Karlsruhe
, 76128 Karlsruhe, Germany
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Mark Farrall
University Technology Centre for Gas Turbine Transmission Systems,
University of Nottingham
, University Park, Nottingham, NG7 2RD, UK
Kathy Simmons
University Technology Centre for Gas Turbine Transmission Systems,
University of Nottingham
, University Park, Nottingham, NG7 2RD, UK
Stephen Hibberd
University Technology Centre for Gas Turbine Transmission Systems,
University of Nottingham
, University Park, Nottingham, NG7 2RD, UK
Philippe Gorse
Institut für Thermische Strömungsmaschinen,
University of Karlsruhe
, 76128 Karlsruhe, GermanyJ. Eng. Gas Turbines Power. Jan 2006, 128(1): 111-117 (7 pages)
Published Online: March 1, 2004
Article history
Received:
October 1, 2003
Revised:
March 1, 2004
Citation
Farrall, M., Simmons, K., Hibberd, S., and Gorse, P. (March 1, 2004). "A Numerical Model for Oil Film Flow in an Aeroengine Bearing Chamber and Comparison to Experimental Data." ASME. J. Eng. Gas Turbines Power. January 2006; 128(1): 111–117. https://doi.org/10.1115/1.1924719
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