Irreversibility analysis in the boundary layer MHD two dimensional flow of Maxwell nanofluid over a melting surface.

• MHD Maxwell fluid. • Melting surface. • Entropy Generation Analysis. • Heat transfer in Maxwell fluid flow over a melting surface alongwith entropy generation has not been discussed in literature yet. This research article is aimed to investigate the behavior of MHD two dimensional flow of Maxwell nanofluid. Non-Newtonian Maxwell nanofluid is considered in the present study to evaluate the phenomena of heat transfer of steady boundary layer flow. The flow of fluid is derived over a stretching melting surface. Observation are made for the concise and terse effect of viscous dissipation, magnetic field and Joule heating. Porous medium is taken into account to observe the flow. The entropy generation model for Maxwell nanofluid is analyzed against different parameters. The set of highly non linear PDE's are generated. A pertinent and relevant similarity transformation is applied to alter the fundamental PDE's of momentum and energy into set of ODE's. The set of non-linear ODE's are solved by using the homotopy analysis method. The flow features and the heat transfer characteristics prevailing this phenomena are investigated and argued for different engaging flow parameters. Tabulated and graphical results for the skin-friction coefficient and Nusselt number are presented for various values of the flow concerened parameters. Entropy generation get hightened increases against increasing values of porosity parameter, Reylond number, nanoparticle fraction, Brinkman number and Hartman number during the flow. [ABSTRACT FROM AUTHOR]