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On the instantaneous formation of cavitation in hydrodynamic lubrication

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Publication Date
2006-11
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Martin, Sébastien
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Elsevier France-editions Scientifiques Medicales Elsevier
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We consider the Elrod-Adams model extending the classical lubrication Reynolds equation to the case of the possible presence of a cavitation region. We show that the behaviour of the pressure and saturation depends crucially on the behaviour of the separation h (t, x, y) among the two surfaces. In particular, we exhibit some simple formulations for which we prove (rigorously) that a cavitation region is formed instantaneously (even for initially saturated flows). Some numerical experiences are also given.
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