IRREVERSIBILITY ANALYSIS OF NONLINEAR MIXED CONVECTIVE TIME-BASED FLOW ANALYSIS OF CASSON-WILLIAMSON NANOFLUID ACCELERATED BY CURVED STRETCHING SURFACE

Abstract

The focus has been placed on mathematically elucidating the nonlinear mixed convective unsteady flow of Casson- Williamson nanofluid transported across a curved, melting stretched sheet using thermal radiation, Joule heating, an exponential heat source, and chemical reactions. Surface boundary conditions involve second-order slip and melting heat. Similarity catalysts simplify partial differential equations that demonstrate the specified flow into ordinary differential equations. Solution graphs for the problem are constructed using a Runge-Kutta-Fehlberg tool of order 4-5. The remaining parameters are simultaneously adjusted to their standard values as the solution graphs for each flowdefining profile are shown with the corresponding parameters. In addition to the Bejan number, the entropy produced by the system is examined. On each presented graph, a thorough analysis has been done. Here, the study shows that a rise in nonlinear solutal convection, nonlinear thermal convection, mixed convection, and the ratio of buoyancy forces promotes the velocity distribution. The magnifying radiation parameter has a rising trend in the thermal distribution, whereas the melting parameter has a decreasing trend. The Brinkman number and diffusion parameter have the most effects on irreversibility in the medium. The Sherwood number decreases with larger values of the Schmidt number, and skin friction decreases when the sheet is more likely to stretch with higher acceleration. In order to illustrate flow and heat patterns and to summarize the study, streamlines and isotherms are used in the graphs.