| Summary: | 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.
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