CFD analysis of friction-reduction effect of micro-textured surfaces in lubricant

Yue Sun; Shaolin Xu; Tomoki Kyoizumi; Keita Shimada; Masayoshi Mizutani; Tsunemoto Kuriyagawa

doi:10.20965/ijat.2018.p0206

CFD analysis of friction-reduction effect of micro-textured surfaces in lubricant

Yue Sun, Shaolin Xu, Tomoki Kyoizumi, Keita Shimada, Masayoshi Mizutani, Tsunemoto Kuriyagawa

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

This paper investigates the effects of geometrical features of tailored textures on friction reduction of a surface with a lubricant-film thickness of several to several-tenths micrometers, using the Navier-Stokes equations and the orthogonal experimental design. The results indicate that the surface textured with the selected sawtooth riblets in lubricant can have up to 93.83% less friction than an untextured surface. The thickness of the lubricant film plays the most important role in friction reduction; the height and the ridge angle of the riblets are the secondary factors. The results and principles obtained can potentially be used in the designing of low-friction surfaces in precision machines with transmission parts.

Original language	English
Pages (from-to)	206-214
Number of pages	9
Journal	International Journal of Automation Technology
Volume	12
Issue number	2
DOIs	https://doi.org/10.20965/ijat.2018.p0206
Publication status	Published - 2018 Jan 1

Keywords

Friction-reduction
Lubrication
Micro-textured surface
Orthogonal experimental design

ASJC Scopus subject areas

Mechanical Engineering
Industrial and Manufacturing Engineering

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title = "CFD analysis of friction-reduction effect of micro-textured surfaces in lubricant",

abstract = "This paper investigates the effects of geometrical features of tailored textures on friction reduction of a surface with a lubricant-film thickness of several to several-tenths micrometers, using the Navier-Stokes equations and the orthogonal experimental design. The results indicate that the surface textured with the selected sawtooth riblets in lubricant can have up to 93.83% less friction than an untextured surface. The thickness of the lubricant film plays the most important role in friction reduction; the height and the ridge angle of the riblets are the secondary factors. The results and principles obtained can potentially be used in the designing of low-friction surfaces in precision machines with transmission parts.",

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AU - Sun, Yue

AU - Xu, Shaolin

AU - Kyoizumi, Tomoki

AU - Shimada, Keita

AU - Mizutani, Masayoshi

AU - Kuriyagawa, Tsunemoto

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