Topic
Lubrication theory
About: Lubrication theory is a research topic. Over the lifetime, 1713 publications have been published within this topic receiving 50261 citations. The topic is also known as: Fluid bearing.
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TL;DR: In this article, an experimental and numerical study of the different lubrication regimes occurring in the sealing gap of a mechanical seal with water as sealed fluid is presented. But the results were obtained on a multi-scale mixed lubrication model considering heat transfer in the solids and seal rings deflections.
21 citations
TL;DR: In this article, the rupture of thin liquid films on hydrophobic substrates, assuming large slip at the liquid-solid interface, is studied using a recently developed strong slip lubrication model, it is shown that the rupture passes through up to three self-similar regimes with different dominant balances and different scaling exponents.
Abstract: The rupture of thin liquid films on hydrophobic substrates, assuming large slip at the liquid-solid interface, is studied using a recently developed strong slip lubrication model, it is shown that the rupture passes through up to three self-similar regimes with different dominant balances and different scaling exponents. For one of these regimes the similarity is of second kind, and the similarity exponent is determined by solving a boundary-value problem for a nonlinear ODE. Furthermore, finite-time rupture is proved for this regime.
21 citations
TL;DR: The integral form in which these equations are applied in this paper is not commonly used in lubrication theory, and, in the estimation of the writer, offers some advantage in other bearing problems particularly when numerical computations are to be used as mentioned in this paper.
Abstract: The pressure distribution in the lubricant film separating two cylindrical rollers has been computed for a Newtonian fluid and for a Maxwell fluid. A comparison of the results indicates that shear elasticity can have effects of first-order significance on both the magnitude and form of the pressure distribution function, reducing load-carrying capacity and maximum shear stress in the film by sizeable amounts. The equations for visco-elastic flow are discussed with emphasis on thin films. The integral form in which these equations are applied in this paper is not commonly used in lubrication theory, and, in the estimation of the writer, offers some advantage in other bearing problems particularly when numerical computations are to be used. Presented as an American Society of Lubrication Engineers paper at the Lubrication Conference held in New York, N.Y., October, 1959.
21 citations
TL;DR: The present investigation shows which radial clearance of ceramic-on-ceramic hip prostheses is appropriate for squeeze-film lubrication under physiological conditions in daily action.
21 citations
TL;DR: Partial porous metal bearings performance during steady state operation with full film of lubricant, determining pressure distribution as mentioned in this paper, was used to determine pressure distribution in steady-state operation of metal bearing.
Abstract: Partial porous metal bearings performance during steady state operation with full film of lubricant, determining pressure distribution
21 citations