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International Journal of Fluid Mechanics Research

Publicado 6 números por año

ISSN Imprimir: 2152-5102

ISSN En Línea: 2152-5110

The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two preceding years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) IF: 1.1 To calculate the five year Impact Factor, citations are counted in 2017 to the previous five years and divided by the source items published in the previous five years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) 5-Year IF: 1.3 The Eigenfactor score, developed by Jevin West and Carl Bergstrom at the University of Washington, is a rating of the total importance of a scientific journal. Journals are rated according to the number of incoming citations, with citations from highly ranked journals weighted to make a larger contribution to the eigenfactor than those from poorly ranked journals. Eigenfactor: 0.0002 The Journal Citation Indicator (JCI) is a single measurement of the field-normalized citation impact of journals in the Web of Science Core Collection across disciplines. The key words here are that the metric is normalized and cross-disciplinary. JCI: 0.33 SJR: 0.256 SNIP: 0.49 CiteScore™:: 2.4 H-Index: 23

Indexed in

Model of Elastohydrodynamic Lubrication with Molecularly Thin Lubricating Films. Part II: Results for an Exemplary Lubrication

Volumen 30, Edición 5, 2003, 14 pages
DOI: 10.1615/InterJFluidMechRes.v30.i5.80
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SINOPSIS

In Part I of this research [1] a hydrodynamic lubrication in smooth line contacts at isothermal and steady state conditions, where molecularly thin lubricating films occur, was theoretically analyzed. This paper is a subsequent part of this research representing the quantitative results for an exemplary lubrication obtained within mentioned theory. It is shown that the effect of the surface pressure on the lubricant mass flow through the contact is insufficient. Therefore, the surface pressure influences mainly the local lubricant film thickness, but has a negligible influence on global film thickness. The surface pressure can cause wavy lubricant film thickness distribution in Hertzian contact zone and local disappearance of the film due to the extremely high attracting surface pressures at a very low local lubricant film thickness what is leading to local adhesion of the contact surfaces. This reduces the load carrying capacity of lubrication because of the decrease of a minimal thickness of the lubricant film. When molecularly thin lubricating films occur, the effect of lubricant's property variation across the film also decreases its thickness and, consequently, reduces the load-carrying capacity of lubrication. For example, a non-Newtonian (shear) thinning effect due to the Eyring stress increases the lubricant film thickness and the load-carrying capacity of lubrication. At the same time, the effects of the flow factor θv, as well as the contact adhering layer, are negligible.

CITADO POR
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  4. Zhang Yongbin, Contact–fluid interfacial slippage in hydrodynamic lubricated contacts, Journal of Molecular Liquids, 128, 1-3, 2006. Crossref

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  8. Zhang Y., A justification of the load‐carrying capacity of elastohydrodynamic lubrication film based on the Newtonian fluid model, Industrial Lubrication and Tribology, 57, 6, 2005. Crossref

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