Impact of radiation on MHD flow with hall effect and induced magnetic field over magnetized vertical surface

Abstract

We investigate the impact of radiation parameter on MHD flow of a viscoelastic fluid over a vertical surface. The Hall effect and induced magnetic field (i.m.f) are applied. The model equations are solved analytically. The nature of pertinent parameters affecting velocity, i.m.f, temperature and concentration are analyzed. The novelty of the research is in investigating the impacts of radiation effect and i.m.f along with Hall current on the flow field. Important findings are: with the rise in thermal radiation, i.m.f falls in primary flow direction, whereas the reverse trend is noticed for secondary flow direction. We also found that radiation effect increases the fluid temperature and both the components of velocity profiles. The expressions of skin friction, current density, Nusselt and Sherwood number over the magnetized vertical surface (m.v.s) are computed and assessed graphically. It is also found that as the Nusselt number rises, skin friction on primary flow accelerates to maximum value then decelerates and current density on secondary flow accelerates with rise in the thermal radiation, whereas skin friction on secondary flow and current density on primary flow decelerate with increase in thermal radiation.

Keywords

• viscoelastic fluid
• radiation effect
• mhd flow
• hall current
• induced magnetic field (i.m.f)