1. Application and validation of a simplified numerical approach for the estimation of windage power losses in spur gears
- Author
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Christophe Changenet, Philippe Velex, Fabrice Ville, Sylvain Pallas, Yann Marchesse, laboratoire d'énergétique, LabECAM, ECAM Lyon (ECAM Lyon)-ECAM Lyon (ECAM Lyon), ECAM Lyon (ECAM Lyon), Laboratoire de Mécanique des Contacts et des Structures [Villeurbanne] (LaMCoS), Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Université de Lyon-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS), Systèmes Mécaniques et Contacts (SMC), and Université de Lyon-Institut National des Sciences Appliquées (INSA)-Université de Lyon-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Institut National des Sciences Appliquées de Lyon (INSA Lyon)
- Subjects
0209 industrial biotechnology ,Similarity (geometry) ,General Computer Science ,Computer science ,RANS ,Windage power loss ,[PHYS.MECA.GEME]Physics [physics]/Mechanics [physics]/Mechanical engineering [physics.class-ph] ,Angular velocity ,02 engineering and technology ,Computational fluid dynamics ,[SPI.MECA.MEFL]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Fluids mechanics [physics.class-ph] ,020901 industrial engineering & automation ,0203 mechanical engineering ,Windage ,[PHYS.MECA.MEFL]Physics [physics]/Mechanics [physics]/Fluid mechanics [physics.class-ph] ,Boundary value problem ,business.industry ,Spur gears ,Emphasis (telecommunications) ,General Engineering ,Mechanics ,[SPI.MECA.GEME]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Mechanical engineering [physics.class-ph] ,Power (physics) ,020303 mechanical engineering & transports ,business ,Reynolds-averaged Navier–Stokes equations - Abstract
International audience; In this paper a computational fluid dynamics (CFD) code is applied to three-dimensional simulations of windage power loss generated by spur gears rotating in air. Emphasis is placed on the simplification which can be made in the numerical approach in order to gain cost and time needed for reaching a converged solution when using both fine mesh and important angular velocity. It appears that the similarity of the flows which are observed in the vicinity of both gear and disk sides is helpful. It is finally possible to compute the flow pattern near the teeth without simulating the contribution of the sides when appropriate boundary conditions are applied at the inlet of a truncated computational domain. The predictions of windage power losses using this original method are satisfying.
- Published
- 2013