A solution to the hydrodynamic lubrication of a circular point contact sliding over a flat surface with cavitation |
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Authors: | Hans B Löfgren |
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Institution: | Functional Surfaces Research Group, School of Business and Engineering, University of Halmstad, P.O. Box 823, SE-301 18 Halmstad, Sweden |
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Abstract: | This letter presents an analytical solution to the hydrodynamic lubrication of a circular point contact sliding over a flat surface with cavitation. The solution is found by solving the Reynolds equation with Reynolds boundary condition for cavitation. The cavitation boundary is shown to be straight lines directed 108.4° against the sliding direction. The result is experimentally verified in the limit of large values of viscosity, sliding velocity and radius of a spherical ball. The solution raises questions about the coupling between cavitation and film rupture and can be used as an independent check on the validity of numerical solutions. |
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Keywords: | Reynolds equation analytical solution cavitation point contact |
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