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Evaluation of a volume of fluid CFD methodology for the oil film thickness estimation in an aero-engine bearing chamber

Bristot, Andrea; Morvan, Herve; Simmons, Kathy

Authors

Andrea Bristot

Herve Morvan



Abstract

The presented work aims to identify a Volume of Fluid (VOF) CFD approach for the transient simulation of air/oil flows inside an aero-engine bearing chamber. Typically VOF requires relatively fine grids and consequently small time-steps to sufficiently resolve the formation of oil films and their interaction with air flows. The need to achieve a stationary-state which requires flow times on the order of seconds makes the compromise between simulation accuracy and simulation times a challenging choice when using the VOF method. In this work, the use of the Compressive Interface Reconstruction scheme with bounded second order implicit time discretization has enabled a significant speed-up of the simulation times against the previously adopted explicit Geometric-Reconstruction scheme. The results are evaluated against experimental data available in the literature.

Citation

Bristot, A., Morvan, H., & Simmons, K. (2016). Evaluation of a volume of fluid CFD methodology for the oil film thickness estimation in an aero-engine bearing chamber

Conference Name ASME 2016 Turbo Expo
End Date Jun 17, 2016
Acceptance Date Jun 1, 2016
Publication Date Jun 13, 2016
Deposit Date Jul 27, 2016
Peer Reviewed Peer Reviewed
Public URL http://eprints.nottingham.ac.uk/id/eprint/35478
Publisher URL http://proceedings.asmedigitalcollection.asme.org/proceeding.aspx?articleid=2554767
Copyright Statement Copyright information regarding this work can be found at the following address: http://eprints.nottingham.ac.uk/end_user_agreement.pdf