Entropy generation in unsteady stagnation flow through porous media in the presence of a high magnetic Reynolds number with a uniform heat source: renewable energy applications

Abstract

The present model’s major focus is on entropy production and Newtonian, incompressible two-dimensional temperature-dependent stagnation point with uniform heat source factors in a porous channel. Furthermore, the induced magnetic field (IMF) is employed in this flow analysis, which is created by the movement of electrically conducting fluid. Entropy generation (EG) is an important aspect of any heat transfer development since it helps to reduce the irreversibility factor in a system. EG analysis has several applications in traditional industrial fields requiring fluid flows and heat transfer. As a result, the current study is concerned with the effects of EG. The relevant similar transformations are used to convert partial governing equations arising in the present model into ordinary differential equations (ODE). The bvp4c built-in code in MATLAB programming is then utilized to crack highly nonlinear equations. We arrive at numerical solutions by employing thebvp4c built-in code in MATLAB software. The results are plotted and discussed for various embedded parameters. It is discovered that because of low friction, the porosity parameter decreases the velocity and induces the magnetic boundary layer. Unsteady parameter and heat source parameters accelerate Bejan number, whereas the heat source and porosity constraints accelerate entropy analysis.