Modelling and analysis of slip conditions in hydrodynamic lubrication of a piston skirt-cylinder contact

Abstract

Purpose

After more than a century of agreement with the postulate of non-slip condition (adhesion to the wall), the study of fluid-solid boundary conditions has shown renewed interest over the past two decades. Although numerous studies have not yet been arrived to a complete description of slip phenomena, however, it appears that the influence of wetting and/or surface roughness results in a weak interaction between fluid and solid; thus, the presence of the slip phenomenon is observed at the fluid-solid interface. The purpose of this paper is to highlight the presence of the slip phenomenon at the lubricated piston skirt-cylinder contact.

Design/methodology/approach

For this proposal, a modified Reynolds equation and operating characteristics are determined by taking into account the slip conditions at the interface between oil-film and entire cylinder surface.

Findings

The findings indicate that the operating characteristics are strongly influenced when the slip conditions are taken into account at the interface between oil-film and cylinder surface. The friction force and dissipated power might be reduced to improve diesel engine performances.

Originality/value

Various research studies have been conducted to model the slip phenomenon in different lubricated contacts over the past two decades. However, there are no studies available concerning the piston-cylinder system.

Peer review

The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-11-2019-0483/

Citation

Mechalikh, M., Zidane, I., Benhamou, A., Zaidi, H. and Tahar Abbes, M. (2020), "Modelling and analysis of slip conditions in hydrodynamic lubrication of a piston skirt-cylinder contact", Industrial Lubrication and Tribology, Vol. 72 No. 10, pp. 1181-1187. https://doi.org/10.1108/ILT-11-2019-0483