In tribology, the Rayleigh step bearing has maximum load capacity of any feasible geometry. Traditional tribology resources have demonstrated that an ideal geometry which maximizes capacity. Both in nature and technology, rough textured surfaces are essential for lubrication. While surface roughness enhances performance bearings as efficiency measure, it still a significant impact on load-carry...

The present work deals with the influence of magnetic field on Newtonian fluid sandwiched between two porous cylindrical pipes which are filled micropolar fluids. Fluid motion is occurring along z*-axis and an applied taken in direction perpendicular to motion. On applying appropriate boundary conditions, velocity profiles, microrotations, flow rate, shear stresses obtained for corresponding re...

This study explores the influence of an inclined magnetic field and variable viscosity on entropy generation in steady flow a couple stress fluid channel. The walls channel are stationary non-isothermal. is driven due to pressure gradient gravitational force. Reynold’s model for temperature-dependent was used. dimensionless, non-linear coupled equations momentum energy solved, we obtained analy...

In this research, wave propagation analysis in polymeric smart nanocomposite micro-tubes reinforced by single-walled carbon nanotubes (SWCNT) conveying fluid is studied. The surrounded elastic medium is simulated by visco-Pasternak model while the composite micro-tube undergoes electro-magneto-mechanical fields. By means of micromechanics method, the constitutive structural coefficients of nano...

The double-diffusive convection in a compressible couple-stress fluid layer heated and soluted from below through porous medium is considered in the presence of a uniform vertical magnetic field. Following the linearized stability theory and normal mode analysis, the dispersion relation is obtained. For stationary convection, the compressibility, stable solute gradient, magnetic field, and coup...