Natural convective MHD nanofluid flow past a vertical plate embedded in a porous medium with thermal diffusion and hall current

Abstract

AbstractIn the present study, we explore MHD water‐based nanofluid flow past an impulsively started infinite vertical plate embedded in a porous medium, including ramped velocity and concentration in the presence of Hall effect, thermal radiation, chemical reaction, heat source/sink and thermal diffusion. The set of non‐dimensional governing equations is computed utilising the Laplace transform method. The effect of different embedded parameters on velocity, temperature and concentration profiles have been plotted and graphically deliberated through physical interpretation. Variations of the Nusselt number, Sherwood number and skin friction are also studied. It is established that for higher values of nanoparticle volume fraction, the primary and secondary velocities and concentration of the fluid reduce. The temperature enhances by increasing the nanoparticle volume fraction. The thermal diffusion upsurges the fluid concentration. The rate of momentum transfer falls as Hall current parameter increases.