Joule heating

Physics

Reynolds number

Newtonian fluid

Heat transfer

Mechanics

Magnetic field

Nusselt number

Thermophoresis

Turbulence

Bejan number

Chemistry

Nanofluid

Weissenberg number

Magnetohydrodynamic drive

Mass transfer

Quantum mechanics

Magnetohydrodynamics

Thermodynamics

Journal of Theoretical and Computational Chemistry

This paper deals with the entropy optimization and heat transport of magneto-nanomaterial flow of non-Newtonian (Jeffrey fluid) towards a curved stretched surface. MHD fluid is accounted. The modeling of energy expression is developed subject to Brownian diffusion, Joule (Ohmic) heating, thermophoresis and viscous dissipation. Total entropy rate is discussed with the help of fluid friction irreversibility, mass transfer irreversibility, Joule heating irreversibility and heat transfer irreversibility. Binary chemical reaction with the smallest amount of activation energy is further considered. The governing equations of Jeffrey fluid with effects of hydrodynamic, thermal radiation, heat and mass transfer were solved through built-in-shooting method. The flow variables on the entropy rate, velocity field, concentration, Bejan number, skin friction coefficient and temperature are physically discussed through various graphs. The outcomes reveal that the entropy rate increases with an enhancement in curvature parameter. Such obtained outcomes help in mechanical and industrial engineering sciences. Moreover, the velocity and temperature decays versus ratio of relaxation to retardation times are also noticed.

Binary chemical reaction with activation energy in dissipative flow of non-Newtonian nanomaterial