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Approximations in Hydrodynamic Lubrication
Journal of Tribology, 1992In this numerical study of the approximations that led Reynolds to the formulation of classical Lubrication Theory, we compare results from (1) the full Navier-Stokes equations, (2) a lubrication theory relative to the “natural,” i.e., bipolar, coordinate system of the geometry that neglects fluid inertia, and (3) the classical Reynolds Lubrication ...
R. X. Dai, Q. Dong, A. Z. Szeri
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Boundary and hydrodynamic lubrication
Wear, 1990Abstract Models of typical characteristics of the surfaces of two interfacing solids under pressure and sliding against each other are described. In the first model, the asperities, wedges of the harder surface, indent into the softer surface due to the applied pressure, producing opposing ridges on the surface of the softer component.
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Hydrodynamic Lubrication of ‘Perspex’
Nature, 1962IN recent experimental investigations of the lubrication at heavily stressed contacts, particular attention has been paid to measurements of the thickness of the lubricant film which, between gear teeth, is typically about 1µ. Using steel cylinders nominally in line or point contact the thickness of the film has been deduced from measurements of ...
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