Investigations on CFD Simulations for Predicting Windage Power Losses in Spur Gears
- 1 February 2011
- journal article
- Published by ASME International in Journal of Mechanical Design
- Vol. 133 (2), 024501
- https://doi.org/10.1115/1.4003357
Abstract
In this paper, a computational fluid dynamics (CFD) code is applied to two- and three-dimensional simulations of windage power loss generated by spur gears rotating in air. Emphasis is placed on the various meshes associated with the finite volume method and on the choice of turbulence model. Comparing CFD predictions with the power losses measured on a specific test rig, it is shown that the fluid ejection in the radial direction must be included in order to reproduce the experimental evidence. The relative importance of the losses generated by the gear front and rear faces along with those due to the teeth is discussed. The volumetric flow rate expelled by the teeth is analyzed and the influence of flanges is highlighted.Keywords
This publication has 13 references indexed in Scilit:
- Load-Independent Spin Power Losses of a Spur Gear Pair: Model FormulationJournal of Tribology, 2009
- Oil Churning Power Losses of a Gear Pair: Experiments and Model ValidationJournal of Tribology, 2009
- Housing Influence on Churning Losses in Geared TransmissionsJournal of Mechanical Design, 2008
- 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
- Experimental and Computational Assessment of Windage Losses in Rotating MachineryJournal of Fluids Engineering, 1996
- Development of turbulence models for shear flows by a double expansion techniquePhysics of Fluids A: Fluid Dynamics, 1992
- Windage Loss in Larger High-Speed GearsProceedings of the Institution of Mechanical Engineers, Part A: Power and Process Engineering, 1984
- Effect of Geometry and Operating Conditions on Spur Gear System Power LossJournal of Mechanical Design, 1981