CFD Analysis of Gear Windage Losses: Validation and Parametric Aerodynamic Studies
- 1 March 2011
- journal article
- Published by ASME International in Journal of Fluids Engineering
- Vol. 133 (3), 031103
- https://doi.org/10.1115/1.4003681
Abstract
A computational fluid dynamics (CFD) method has been applied to gear configurations with and without shrouding. The goals of this work have been to validate the numerical and modeling approaches used for these applications and to develop physical understanding of the aerodynamics of gear windage loss. Several spur gear geometries are considered, for which experimental data are available. Various canonical shrouding configurations and free spinning (no shroud) cases are studied. Comparisons are made with experimental data from open literature, and data recently obtained in the NASA Glenn Research Center Gear Windage Test Facility, Cleveland, OH. The results show good agreement with the experiment. The parametric shroud configuration studies carried out in the Glenn experiments and the CFD analyses elucidate the physical mechanisms of windage losses as well as mitigation strategies due to shrouding and newly proposed tooth contour modifications.Keywords
This publication has 14 references indexed in Scilit:
- Investigations on CFD Simulations for Predicting Windage Power Losses in Spur GearsJournal of Mechanical Design, 2011
- Gear Windage: A ReviewJournal of Mechanical Design, 2008
- Modelling windage power loss from an enclosed spur gearProceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy, 2007
- Windage Losses in High Speed Gears—Preliminary Experimental and Theoretical ResultsJournal of Mechanical Design, 2004
- Efficiency of Nonstandard and High Contact Ratio Involute Spur GearsJournal of Mechanical Design, 1986
- Windage Loss in Larger High-Speed GearsProceedings of the Institution of Mechanical Engineers, Part A: Power and Process Engineering, 1984
- Approximate Riemann solvers, parameter vectors, and difference schemesJournal of Computational Physics, 1981
- Effect of Geometry and Operating Conditions on Spur Gear System Power LossJournal of Mechanical Design, 1981
- Towards the ultimate conservative difference scheme. V. A second-order sequel to Godunov's methodJournal of Computational Physics, 1979
- A numerical method for solving incompressible viscous flow problemsJournal of Computational Physics, 1967