Hall current effects on MHD flow of chemically reacting fluid through a porous medium with heat source

Abstract

We considered the magnetohydrodynamic (MHD) free convective flow of an incompressible electrically conducting viscous fluid past an infinite vertical permeable porous plate with a uniform transverse magnetic field, heat source and chemical reaction in a rotating frame taking Hall current effects into account. The momentum equations for the fluid flow during absorbent medium are controlled by the Brinkman model. Through the undisturbed state, both the plate and fluid are in a rigid body rotation by the uniform angular velocity perpendicular to an infinite vertical plate. The perpendicular surface is subject to the homogeneous invariable suction at a right angle to it and the heat on the surface varies about a non‐zero unvarying average whereas the warmth of complimentary flow is invariable. The systematic solutions of the velocity, temperature, and concentration distributions are acquired systematically by utilizing the perturbation method. The velocity expressions consist of steady‐state and fluctuating situations. It is revealed that the steady part of the velocity field has a three‐layer characteristic while the oscillatory part of the fluid field exhibits a multi‐layer characteristic. The influence of various governing flow parameters on the velocity, temperature, and concentration are analyzed graphically. We also discuss computational results for the skin friction, Nusselt number, and Sherwood number in the tabular forms.

Intricate dynamics of rotational buoyancy, magnetic field, Hall current, and infrared radiation in a Casson fluid medium

“…VeeraKrishna and Chamkha [49] have disclosed the upshots of Hall and ion slip phenomena on the time-varying revolving flow of a mixture containing silver-titania nanoparticles in water and EG past an upright plate with wall slippage. Further references related to the Hall phenomena can be found in citations [50][51][52][53][54].…”