Suscripción a Biblioteca: Guest
THMT-18. Turbulence Heat and Mass Transfer 9 Proceedings of the Ninth International Symposium On Turbulence Heat and Mass Transfer
July, 10-13, 2018, Rio de Janeiro, Brazil

DOI: 10.1615/THMT-18


ISBN Print: 978-1-56700-468-7

ISBN Online: 978-1-56700-467-0

ISSN Print: 2377-2816

Numerical prediction of windage power losses for a spur gear in two phase media

pages 877-881
DOI: 10.1615/THMT-18.930
Get accessGet access

SINOPSIS

Windage losses arise due to viscous dissipation of air - oil mist flow driven by the rotating faces, sides of the gears in a gearbox. In the open literature, theoretical investigations mostly focused on the single phase (air) flow. Thus there is research need for the analysis of the windage losses under more realistic conditions. In the present study we attempt to elucidate the complex flow physics between the gears by considering the effects of oil particles in the highly turbulent air flow. The goals of this work is to develop physical understanding of the aerodynamics of gear windage loss. A spur gear geometry was considered, for which experimental and theoretical data are available. A commercial Computational Fluid Dynamics algorithm (CFD++) was utilized for the numerical simulations.Various shrouding configurations and free spinning cases are studied at different rotation speeds of the gear. The effects of the oil droplets on the windage losses were quantified.

Portal Digitalde Biblioteca Digital eLibros Revistas Referencias y Libros de Ponencias Colecciones Precios y Políticas de Suscripcione Begell House Contáctenos Language English 中文 Русский Português German French Spain