Hall and ion slip impacts on unsteady MHD convective rotating flow of heat generating/absorbing second grade fluid

We have explored theoretically the Hall and ion slip impacts on an unsteady laminar MHD convective rotating flow of heat generating or absorbing second grade fluid over a semiinfinite vertical moving permeable surface. The non-dimensional equations for the governing flow are solved to the most excellent possible investigative solution using perturbation methodology. The effects of parameters on velocity, temperature and concentration are demonstrated graphically and described in detail. For engineering curiosity, the shear stresses, Nusselt number and Sherwood number are obtained analytically, represented computationally in a tabular format as well as explained with respect to foremost parameters. It is concluded that, the resultant velocity is increased with an increasing in Hall and ion slip parameters throughout fluid region. The thermal and solutal buoyancy forces contribute to the resultant velocity ever-increasing to high. The temperature distribution is trim downs through an increasing in heat source parameter. The concentration is reduced with an increase in the chemical reaction parameter in the entire fluid region. Rotation parameter is to diminish the skin friction, whereas it is augmented through an increase of the Hall and ion slip effects. The rate of mass transfer is increased with increasing chemical reaction parameter. (C) 2020 The Authors. Published by Elsevier B.V. on behalf of Faculty of Engineering, Alexandria University.

Automated summary

Through theoretical exploration, it was found that an increase in Hall and ion slip parameters leads to an increase in velocity throughout the fluid region, with thermal and solutal buoyancy forces contributing to velocity rising to high levels. The temperature decreases with an increase in the heat source parameter, while concentration decreases with an increase in the chemical reaction parameter. The rotation parameter reduces skin friction, whereas Hall and ion slip effects increase it, and an increase in the chemical reaction parameter results in an increased rate of mass transfer.