CFD analysis of gear windage losses

Validation and parametric aerodynamic studies

Matthew J. Hill, Robert Francis Kunz, Richard B. Medvitz, Robert F. Handschuh, Lyle Norman Long, Ralph W. Noack, Philip John Morris

Research output: Contribution to journalArticle

40 Citations (Scopus)

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.

Original languageEnglish (US)
Article number031103
JournalJournal of Fluids Engineering, Transactions of the ASME
Volume133
Issue number3
DOIs
StatePublished - Mar 30 2011

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Dynamic analysis
Gears
Aerodynamics
Computational fluid dynamics
Spur gears
Test facilities
NASA
Experiments
Geometry

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering

Cite this

Hill, Matthew J. ; Kunz, Robert Francis ; Medvitz, Richard B. ; Handschuh, Robert F. ; Long, Lyle Norman ; Noack, Ralph W. ; Morris, Philip John. / CFD analysis of gear windage losses : Validation and parametric aerodynamic studies. In: Journal of Fluids Engineering, Transactions of the ASME. 2011 ; Vol. 133, No. 3.
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CFD analysis of gear windage losses : Validation and parametric aerodynamic studies. / Hill, Matthew J.; Kunz, Robert Francis; Medvitz, Richard B.; Handschuh, Robert F.; Long, Lyle Norman; Noack, Ralph W.; Morris, Philip John.

In: Journal of Fluids Engineering, Transactions of the ASME, Vol. 133, No. 3, 031103, 30.03.2011.

Research output: Contribution to journalArticle

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