Insight into free convection of an unsteady flow of kerosene conveying copper nanoparticles subject to thermal radiation

Abstract

The present article deals with the analysis of the enhanced heat transport phenomenon due to the interaction between radiative heat and heat absorption in the time-dependent flow of nanofluid past a semi-infinite flat plate embedding within a permeable medium. The inclusion of a magnetic field also strengthens the profiles. Because of today’s need in several industries and biological fluids such as radiotherapy, peristaltic flow of blood pumping, drug delivery system, etc. the application of nanofluid is vital. Therefore, the implementation of thermal radiation and heat absorption plays an important role. The transformation of the dimensional governing equations needs various non-dimensional quantities and variables and the perturbation technique is deployed with the suitable choice of perturbation parameter. These transformed equations are handled analytically and the variation of the characterising parameters is illustrated graphically for the different values setting their range as cited in the literature. Furthermore, the important outcomes are thinning in the velocity bounding surface thickness is obtained for the augmentation in the resistive force of magnetic field within a permeable medium; , nanoparticle concentration and the magnetic parameter enhance the shear rate coefficient.