MHD convective rotating flow of viscoelastic fluid past an infinite vertical oscillating porous plate with Hall effects

Abstract

It is considered the unsteady and incompressible magnetohydrodynamic rotating free convection flow of viscoelastic fluid with simultaneous heat and mass transfer near an infinite vertical oscillating porous plate under the influence of uniform transverse magnetic field and taking Hall current into account. The governing equations of the flow field are then solved by a regular perturbation method for a small elastic parameter. The expressions for the velocity, temperature, and concentration have been derived analytically and also its behavior is computationally discussed with reference to different flow parameters with the help of graphs. The skin friction on the boundary, the heat flux in terms of the Nusselt number, and the rate of mass transfer in terms of the Sherwood number are also obtained and their behavior discussed. The resultant velocity enhances with increasing Hall parameter and rotation parameter. The reversal behavior is observed with increasing viscoelastic parameters. The resultant velocity enhances and experiences retardation in the flow field with increasing radiation parameters, whereas the secondary velocity component increases with increasing rotation parameters. The temperature diminishes as the Prandtl number and/or the frequency of oscillations. The concentration reduces at all points of the flow field with the increase in the Schmidt number.

Chemical reaction and magnetohydrodynamics effects on heat absorbing fluid past an inclined porous plate

“…Postelnic 21 determined how radiation, as well as the impacts of Dufour, affect free convective flow in an absorbent material. Raju et al 22 considered the unsteady and incompressible MHD rotating free convection flow of viscoelastic fluid with simultaneous heat and mass transfer near an infinite vertical oscillating porous plate under the influence of uniform transverse magnetic field and taking Hall current into account. Raju and Verma 23 studied the consequences of a chemical reaction in the context of a mass transfer issue based on axial diffusion.…”

Three-dimensional rotating viscous flow past a permeable stretching/shrinking sheet with convective boundary condition

“…Recently, Raju et al [16] considered the unsteady and incompressible magnetohydrodynamic rotating free convection flow of viscoelastic fluid with simultaneous heat and mass transfer near an infinite vertical oscillating porous plate under the influence of uniform transverse magnetic field and taking Hall current into account. They concluded that the resulting velocity strengthens and encounters deceleration within the flow field as the radiation parameters increase.…”