Andrea Bristot
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
Herve Morvan
KATHY JOHNSON Kathy.Johnson@nottingham.ac.uk
Professor of Mechanical and Aerospace Engineering
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 |
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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 | https://nottingham-repository.worktribe.com/output/795328 |
Publisher URL | http://proceedings.asmedigitalcollection.asme.org/proceeding.aspx?articleid=2554767 |
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