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Lubricants 2018, 6(1), 15; https://doi.org/10.3390/lubricants6010015

CFD Modeling of the Effect of Different Surface Texturing Geometries on the Frictional Behavior

1
CEMMPRE, Centre for Mechanical Engineering, Materials and Processes, University of Coimbra, Rua Luís Reis Santos, 3030-788 Coimbra, Portugal
2
IMT, Institute of Metals and Technology, Lepi pot 11, SI-1000 Ljubljana, Slovenia
3
Faculty of Mechanical Engineering, University of Ljubljana, SLO 1000 Ljubljana, Slovenia
This author has been passed away.
*
Author to whom correspondence should be addressed.
Received: 5 December 2017 / Revised: 29 December 2017 / Accepted: 22 January 2018 / Published: 26 January 2018
(This article belongs to the Special Issue Tribological Performance of Textured Surfaces)

Abstract

In order to understand the effect of surface texturing parameters on the frictional behavior of textured surfaces and to correlate results of different lubrication regimes, Computational Fluid Dynamics (CFD) numerical analysis of the fluid flow was performed for four different textured surface geometries. The aim of the present research paper is to get theoretical background for the frictional behavior of textured surfaces under hydrodynamic lubrication. Since it is unrealistic to make a direct analysis of a real problem that can possess more than several thousand micro-dimples, the purpose is then to investigate the flow in single cells of periodical micro-dimple patterns and to extract useful conclusions for the lubrication’s framework. Among all geometries studied, optimum geometry shapes in terms of hydrodynamic performance were reported. It was found that the best hydrodynamic performance was achieved with the rectangular geometry (lowest shear force). View Full-Text
Keywords: modeling; CFD; surface texturing; lubrication mode; Reynolds equation modeling; CFD; surface texturing; lubrication mode; Reynolds equation
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Vilhena, L.; Sedlaček, M.; Podgornik, B.; Rek, Z.; Žun, I. CFD Modeling of the Effect of Different Surface Texturing Geometries on the Frictional Behavior. Lubricants 2018, 6, 15.

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