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Analysis of Nanoparticle Additive Couple Stress Fluids in Three-layered Journal Bearing

The present theoretical study investigates the load capacity and friction coefficient in a three-layered journal bearing lubricated with nanoparticle additive couple stress fluids. The couple stresses effects are analyzed based on Stokes micro-continuum theory. The nondimensional pressure and shear...

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Published in:Journal of physics. Conference series 2013-01, Vol.431 (1), p.12023-8
Main Authors: Rao, T V V L N, Sufian, S, Mohamed, N M
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Language:English
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description The present theoretical study investigates the load capacity and friction coefficient in a three-layered journal bearing lubricated with nanoparticle additive couple stress fluids. The couple stresses effects are analyzed based on Stokes micro-continuum theory. The nondimensional pressure and shear stress expressions are derived using modified Reynolds equation. The nondimensional load capacity increases and the coefficient of friction decreases using nanoparticle additive lubricants with couple stress effects. The three-layered journal bearing performance characteristics are improved with increase in both (i) surface adsorbent fluid film layer thickness and (ii) dynamic viscosity ratio of surface to core layer.
doi_str_mv 10.1088/1742-6596/431/1/012023
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subjects Additives
Coefficient of friction
Fluid dynamics
Fluid flow
Friction
Joining
Journal bearings
Lubricants
Nanoparticles
Nanostructure
Physics
Reynolds equation
Shear stress
Stresses
Thickness
Viscosity ratio
title Analysis of Nanoparticle Additive Couple Stress Fluids in Three-layered Journal Bearing
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