Flow structure in a flooded ball bearing
| Autor: | R. Gaudemer, D. H. Fruman, C. Nouar |
|---|---|
| Rok vydání: | 1996 |
| Předmět: |
Fluid Flow and Transfer Processes
Materials science business.industry Turbulence Computational Mechanics General Physics and Astronomy Laminar flow Mechanics Laser Doppler velocimetry Physics::Fluid Dynamics Azimuth Optics Mechanics of Materials Ball (bearing) business Cage Scale model Confined space |
| Zdroj: | Experiments in Fluids. 21:71-79 |
| ISSN: | 1432-1114 0723-4864 |
| DOI: | 10.1007/bf00193909 |
| Popis: | The flow structure in the confined space between the outer ring, the cage and the balls of a bearing is investigated using a large scale model allowing to perform visualizations, by tracer and dot-paint techniques, and velocity measurements, by Laser Doppler Velocity (LDV), through the transparent rotating outer ring. The visualization results show, in the region between two consecutive balls, the existence of a reversed flow on the cage surface resulting from the aspiration and blowing effect of the rotation of the balls in their cage housings. Systematic measurements of azimuthal velocities in different cross-sections of the gap confirmed the qualitative visualziation findings in laminar flow. For turbulent flow the results show that the extension of the reversed flow region is reduced and the reversed velocities are proportionally smaller as compared to the laminar case. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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