Significance of Axisymmetric Flow of Casson Darcy Unsteady Slip Flow in a Suspension of Nanoparticles with Contracting Walls

Abstract

Current research inspects the influences of heat and mass transfer features of a Casson nanofluid flow over a growing or contracting porous medium with distinct permeability and thermal radiation. The free convection of ethylene-glycol and water as SWCNT Casson nanofluid and base fluid and it is impacted by a magnetic force field in two-dimensional flow. We have employed the governing equations of momentum, thermal radiation; boundary layers are lessened into a series of PDEs. And then, they are transformed to a series of non-linear ODEs by using similarity transformation technique. Numerical solutions of these are obtained with the help of shooting method together with the approach of fourth order R-K method. The decent correspondence between the investigative and numerical solutions is observed. Including to this, we contemplate and examine the impact of associated parameters like the coefficient of skin friction, Darcy number, Radiation parameter and Nusselt number on the velocity and temperature profiles. The outcomes demonstrated that ethylene-glycol and water as SWCNT Casson nanofluid and base fluid has the least local Nusselt number, minimum velocity and towering temperature. Moreover, our outcomes are tabulated and presented graphically. Illustrations made excellent agreement with the physical notions like the coefficient of skin friction and the Nusselt number. These outcomes are too analysed completely with existing results. We observed that, hard carbon nanoparticles guide to a greater velocity close to the as compared with the base fluid water ethylene glycol for the case of collective injection in addition to wall contraction. The Brownian motion increases the temperature profile while compare to profiles in the contraction case.