The influence of surface texturing and boundary slip on the film thickness in parallel sliding surfaces

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Abstract

The influence of wall slip on fluid flow is of interest for many engineering topics involving liquid-solid interfacial phenomena, such as flow through porous media, liquid coatings and lubrication. Boundary slip can act as a method to reduce friction in lubricated contacts. Furthermore, surface texturing can also play a positive role in enhancing the film thickness. Therefore, a combination of these two methods can be beneficial in order to improve the tribological performance of lubricated contacts. Although the study of frictional behaviour of surfaces with boundary slip has been getting more attention in recent years, the combination of these two methods of surface property modification is interesting to investigate. For the no-slip boundary condition, the first layer of fluid molecules has the same velocity as the contacting solid surface and this condition has been widely applied in the field of fluid mechanics. In lubricated contacts with boundary slip, the first layer of the lubricant molecules moves at a different velocity from the solid surface. In this article, the frictional behaviour of boundary slip in parallel sliding lubricated contacts for textured surfaces is investigated. This study shows that boundary slip has a significant influence on the film thickness in the case of textured surfaces. Furthermore, it is possible to increase the film thickness, and enhance the frictional behaviour by modifying the boundary slip parameters.
Original languageEnglish
Number of pages10
Publication statusPublished - Jan 2018
Event21th International Colloquium Tribology 2018: Automotive and Industrial Lubrication - Esslingen, Germany
Duration: 9 Jan 201811 Jan 2018
Conference number: 21

Conference

Conference21th International Colloquium Tribology 2018
CountryGermany
CityEsslingen
Period9/01/1811/01/18

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sliding
slip
film thickness
solid surfaces
fluid mechanics
lubricants
liquids
lubrication
surface properties
fluid flow
molecules
friction
engineering
boundary conditions
coatings
fluids

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Bijani, D., Deladi, E. L., de Rooij, M. B., & Schipper, D. J. (2018). The influence of surface texturing and boundary slip on the film thickness in parallel sliding surfaces. Paper presented at 21th International Colloquium Tribology 2018, Esslingen, Germany.
Bijani, Dariush ; Deladi, E.L. ; de Rooij, M.B. ; Schipper, D.J. / The influence of surface texturing and boundary slip on the film thickness in parallel sliding surfaces. Paper presented at 21th International Colloquium Tribology 2018, Esslingen, Germany.10 p.
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abstract = "The influence of wall slip on fluid flow is of interest for many engineering topics involving liquid-solid interfacial phenomena, such as flow through porous media, liquid coatings and lubrication. Boundary slip can act as a method to reduce friction in lubricated contacts. Furthermore, surface texturing can also play a positive role in enhancing the film thickness. Therefore, a combination of these two methods can be beneficial in order to improve the tribological performance of lubricated contacts. Although the study of frictional behaviour of surfaces with boundary slip has been getting more attention in recent years, the combination of these two methods of surface property modification is interesting to investigate. For the no-slip boundary condition, the first layer of fluid molecules has the same velocity as the contacting solid surface and this condition has been widely applied in the field of fluid mechanics. In lubricated contacts with boundary slip, the first layer of the lubricant molecules moves at a different velocity from the solid surface. In this article, the frictional behaviour of boundary slip in parallel sliding lubricated contacts for textured surfaces is investigated. This study shows that boundary slip has a significant influence on the film thickness in the case of textured surfaces. Furthermore, it is possible to increase the film thickness, and enhance the frictional behaviour by modifying the boundary slip parameters.",
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Bijani, D, Deladi, EL, de Rooij, MB & Schipper, DJ 2018, 'The influence of surface texturing and boundary slip on the film thickness in parallel sliding surfaces' Paper presented at 21th International Colloquium Tribology 2018, Esslingen, Germany, 9/01/18 - 11/01/18, .

The influence of surface texturing and boundary slip on the film thickness in parallel sliding surfaces. / Bijani, Dariush ; Deladi, E.L.; de Rooij, M.B.; Schipper, D.J.

2018. Paper presented at 21th International Colloquium Tribology 2018, Esslingen, Germany.

Research output: Contribution to conferencePaperAcademic

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T1 - The influence of surface texturing and boundary slip on the film thickness in parallel sliding surfaces

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AU - Deladi, E.L.

AU - de Rooij, M.B.

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N2 - The influence of wall slip on fluid flow is of interest for many engineering topics involving liquid-solid interfacial phenomena, such as flow through porous media, liquid coatings and lubrication. Boundary slip can act as a method to reduce friction in lubricated contacts. Furthermore, surface texturing can also play a positive role in enhancing the film thickness. Therefore, a combination of these two methods can be beneficial in order to improve the tribological performance of lubricated contacts. Although the study of frictional behaviour of surfaces with boundary slip has been getting more attention in recent years, the combination of these two methods of surface property modification is interesting to investigate. For the no-slip boundary condition, the first layer of fluid molecules has the same velocity as the contacting solid surface and this condition has been widely applied in the field of fluid mechanics. In lubricated contacts with boundary slip, the first layer of the lubricant molecules moves at a different velocity from the solid surface. In this article, the frictional behaviour of boundary slip in parallel sliding lubricated contacts for textured surfaces is investigated. This study shows that boundary slip has a significant influence on the film thickness in the case of textured surfaces. Furthermore, it is possible to increase the film thickness, and enhance the frictional behaviour by modifying the boundary slip parameters.

AB - The influence of wall slip on fluid flow is of interest for many engineering topics involving liquid-solid interfacial phenomena, such as flow through porous media, liquid coatings and lubrication. Boundary slip can act as a method to reduce friction in lubricated contacts. Furthermore, surface texturing can also play a positive role in enhancing the film thickness. Therefore, a combination of these two methods can be beneficial in order to improve the tribological performance of lubricated contacts. Although the study of frictional behaviour of surfaces with boundary slip has been getting more attention in recent years, the combination of these two methods of surface property modification is interesting to investigate. For the no-slip boundary condition, the first layer of fluid molecules has the same velocity as the contacting solid surface and this condition has been widely applied in the field of fluid mechanics. In lubricated contacts with boundary slip, the first layer of the lubricant molecules moves at a different velocity from the solid surface. In this article, the frictional behaviour of boundary slip in parallel sliding lubricated contacts for textured surfaces is investigated. This study shows that boundary slip has a significant influence on the film thickness in the case of textured surfaces. Furthermore, it is possible to increase the film thickness, and enhance the frictional behaviour by modifying the boundary slip parameters.

M3 - Paper

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Bijani D, Deladi EL, de Rooij MB, Schipper DJ. The influence of surface texturing and boundary slip on the film thickness in parallel sliding surfaces. 2018. Paper presented at 21th International Colloquium Tribology 2018, Esslingen, Germany.