Influence of thermo-diffusion and dissipation thermo on the characteristics of optimized mixed convective radiative laminar flow with chemical reaction

Abstract

Numerical simulation in radiative flow of mixed convection laminar fluid with entropy generation by a porous stretched surface is analyzed. Energy expression for Joule heating, dissipation and thermal flux is addressed. Vital characteristics of diffusion-thermo and thermo diffusion are also studied. Irreversibility communication is develop through thermodynamic second law. Entropy optimization is calculated. Chemical reaction is also deliberated. Nonlinear PDEs are changed to ordinary differential equations through similarity variables. Optimal homotopy analysis technique is instigated to construct the convergent solution. Salient characteristics of involved variables for entropy optimization, temperature, velocity, concentration and Bejan number are deliberated. Velocity gradient, heat transfer rate and Sherwood number are addressed. For larger suction parameter the velocity increases. Velocity raises for higher estimation of porosity parameter. An increment occurs in temperature against Dufour number. For rising values of radiation parameter the temperature upsurges. Higher Soret number leads to the concentration decay. Both entropy rate and Bejan number are augmented for radiation effect. Velocity gradient enhances for larger magnetic and porosity parameters. Nusselt number is improved via radiation parameter and Brinkman number.