maybe viscosity in drilling fluid is the most important parameter because cutting removal from well are task of viscose fluid. if viscosity of fluid is less than particular value, cutting will settle down in well and drilling operation will be stopped. in this study, synthesis of alumina/polyacrylamide nanocomposite through solution polymerization method was performed. rheological behavior of m...

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...