Heat and Mass Transfer of a Casson Nanofluid Flow Over a Porous Surface With Dissipation, Radiation, and Chemical Reaction

Casson nanofluid flow with dissipation, radiation, and chemical reaction in the presence of a temperature gradient-dependent heat sink subject to suction is analyzed. Hence, this paper mainly deals nanofluids with nanoparticles Cu, Au, Ag, Al, Al
₂
O
₃
, and TiO
₂
and with base fluid water. Prescribed surface temperature and concentration boundary conditions are employed on the porous surface. Suitable similarity transformations are introduced for converting nonlinear partial differential equations into the nonlinear ordinary differential equations and then solved by analytically. The influence of various physical parameters such as the nanoparticle volume fraction, Casson fluid parameter, suction parameter, permeability parameter, heat sink parameter, Prandtl number, Eckert number, radiation parameter, Schmidt number, and chemical reaction parameter over the velocity, temperature, and species concentration of nanofluid Cu-water is examined by using graphs. Skin friction coefficient, Nusselt number, and Sherwood number of various nanofluids with nanoparticles (Cu, Ag, Au, Al, Al
₂
O
₃
, and TiO
₂
) are tabulated and analyzed.