Motion of hybrid nanofluid [formula omitted] with homogeneous–heterogeneous reaction: Marangoni convection.

This paper is designed to analyze the entropy production in hybrid nanofluid (MnZnF e 2 O 4 –NiZnF e 2 O 4 – H 2 O). Marangoni convection is the phenomena of mass transfer between two phases of fluids when gradient of surface tension take place. Darcy–Forchheimer flow is incorporated in momentum equation. In thermal equation we are studying additional effects of nonlinear heat source sink with thermal radiation. Heterogeneous–homogeneous reactions are also studied. Transformations are used to convert our system of equations in to ODE's so we can easily solve them by using ND Solve MATHEMATICA. Characteristics of fluid (temperature, entropy generation, velocity, Bejan number, Nusselt number, concentration and skin friction) are calculated and studied in detail. Results are presented through graphs. Flow resists due to enhancement in Marangoni ratio parameter. Temperature boosts up for higher thermal and exponential heat source sink. Concentration field is rising for greater heterogeneous parameter. Entropy and Bejan have contrast behavior for Brinkman number. [ABSTRACT FROM AUTHOR]