Analysis of dissipative non‐Newtonian magnetic polymer flow from a curved stretching surface with slip and radiative effects

Abstract

The convective–radiative magnetohydrodynamic non‐Newtonian second‐grade fluid boundary layer flow from a curved stretching surface has been scrutinized in the present study. The Reiner–Rivlin second‐grade viscoelastic model is deployed which provides a good approximation for certain magnetic polymers. High temperature invokes the presence of radiative heat transfer, which is simulated with the Rosseland diffusion approximation. Viscous dissipation and Joule heating are also featured in the model and hydrodynamic (velocity) slip at the wall is also incorporated in the boundary conditions. The emerging nonlinear coupled dimensionless transport equations are solved with a Runge–Kutta method and a shooting numerical scheme. The influence of emerging multiphysical flow parameters on the dimensionless profiles is examined with the help of plots for comparative analysis of both non‐Newtonian fluid and Newtonian fluid. The numerical solutions are validated for special cases with existing works. The velocity declines for a higher magnetic field, whereas the reverse trend is noted for the temperature function. The augmentation in the thermal field is noted with increments in radiation parameters. Furthermore, the fluid temperature of the second‐grade fluid is higher with increasing Brinkmann number. The wall slip induces deceleration. Contour plots for streamlines and isotherms are also visualized and analyzed.

Physics‐informed deep learning study for MHD particle‐fluid suspension flow with heat transfer in porous annular‐sector duct

“…The symmetry assumptions are not utilized here, also the axial heat conduction and viscous dissipation are neglected. 31,32 The considered situation may occur in an operating tubular heat exchanger where several active and passive methods are used in the presence of particle suspensions. Under these conditions, the governing equations in cylindrical coordinates of continuity, linear momentum, and energy for both the fluid and particle phase take the form 33 :…”

“…The flow is disturbed by Lorentz force $${\bf{J}}\times {\bf{B}}$$ generated by a uniform magnetic field $${\bf{B}}({B}_{0},0,0)$$ applied to the radial direction of the annular duct. The symmetry assumptions are not utilized here, also the axial heat conduction and viscous dissipation are neglected 31,32 . The considered situation may occur in an operating tubular heat exchanger where several active and passive methods are used in the presence of particle suspensions.…”

Impact of porosity and radiation on two‐dimensional unsteady magnetohydrodynamics heat transfer stagnation point flow with viscous dissipation

“…Gnaneswara Reddy et al 35 studied an effect of viscous dissipation and heat source on unsteady MHD flow over a stretching sheet. Gnaneswara Reddy et al 36 discussed the analysis of dissipative non‐Newtonian magnetic polymer flow from a curved stretching surface with slip and radiative effects.…”