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Updated: May 28, 2026
11:51
Visually Based Characterization of the Incipient Particle Motion in Regular Substrates: From Laminar to Turbulent Conditions
Published on: February 22, 2018
Lubricated sliding dynamics: flow factors and Stribeck curve
1IFF, FZ Jülich, D-52425 Jülich, Germany. b.persson@fz-juelich.de
The European Physical Journal. E, Soft Matter
|October 22, 2011
Summary
This study analyzes fluid flow and friction between rough elastic solids, deriving analytical expressions and presenting numerical results for lubricated rubber surfaces under varying pressures. Findings highlight the impact of fluid-induced deformations on surface roughness.
Area of Science:
- Tribology
- Solid Mechanics
- Fluid Dynamics
Background:
- Understanding fluid flow and friction at interfaces is crucial for designing lubricated systems.
- Surface roughness significantly influences contact mechanics and fluid behavior.
- Elastic deformations can alter interface properties under load.
Purpose of the Study:
- To derive analytical expressions for fluid flow and frictional shear stress factors at elastic solid interfaces with random roughness.
- To numerically investigate fluid flow and friction for a lubricated rubber cylinder on a flat substrate under different pressures.
- To analyze the effect of fluid-induced elastic deformations on surface roughness profiles.
Main Methods:
- Derivation of approximate analytical expressions for fluid flow and friction factors.
- Numerical simulations of a rubber cylinder sliding on a lubricated surface.
- Analysis of low and high pressure conditions.
- Investigation of fluid-induced elastic deformations.
Main Results:
- Analytical expressions for fluid flow and frictional shear stress factors were derived.
- Numerical results demonstrated the behavior of fluid flow and friction under varying pressures.
- The influence of fluid-induced elastic deformations on surface roughness was discussed.
Conclusions:
- The study provides a framework for analyzing fluid flow and friction in lubricated contacts with rough elastic surfaces.
- Numerical results offer insights into the practical implications for materials like rubber.
- Fluid-induced deformations play a significant role in modifying interface behavior.
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