NUMERICAL ASSESSMENTS OF PRESCRIBED HEAT SOURCES ON UNSTEADY 3D FLOW OF WILLIAMSON NANOLIQUID THROUGH POROUS MEDIA

Abstract

The core theme of recent work is to describe the magnetohydrodynamic Williamson nanoliquid flow generated by an unsteady highly linear bidirectionally stretchable surface dipped in porous media. The effects of various heat modes, namely, prescribed surface temperature and prescribed heat flux, are also taken into considerations. The Buongiorno nanoliquid model has been used to analyze the amounts of heat plus mass transference. A suitable combination of variables has been used to transform the governing set of partial differential equations into the set of ordinary differential equations. Numerical assessment of heat and mass transference has been made by the courtesy of the Keller-Box scheme. Physical quantities of engineering importance have been discussed through various plots and through tabular arrangements. It is detected through the present contribution that escalating amounts of the unsteady parameter, expansion ratio parameter, and temperature-controlled index develop the rate of heat transfer, as well as enhance the rate of mass transfer. Moreover, it is also observed that the intensifying amounts of Williamson parameter, magnetic parameter, expansion ratio parameter, unsteady parameter, and porosity parameter improve the amounts of skin frictions. Furthermore, a better rate of heat transfer is achieved for prescribed surface temperature as compared to prescribed heat flux, whereas the better rate of mass transfer is attained for prescribed heat flux as compared to prescribed surface temperature.