Flow past radially stretching sheet in Cu – Al2O3 /water nanofluid with Chemical reaction, Radiation, and Magnetic effects

Résumé

This paper examines the steady laminar flow over a radially stretching sheet in a hybrid nanofluid,
considering the influences of chemical reactions, radiation, and magnetic fields. The equations that describe the
flow are changed into ordinary differential equations via similarity transformations. The successive linearization
is employed to linearize the system of nonlinear equations. The solution for the resultant system of linear
equations is obtained by utilizing the Chebyshev collocation technique. Plots of the concentration, velocity,
and temperature for chosen parameters are demonstrated in conjunction with the Nusselt number, Sherwood
number, and skin friction coefficient. The hybrid nanofluid demonstrates a faster heat transfer pace compared
to nanofluid on the radially stretched surface. Additionally, it is found that rising volume fractions of alumina
and copper nanoparticles shorten the local Nusselt number and strengthen the local Sherwood. Further,
boosting the magnetic parameter diminishes both the Sherwood and Nusselt numbers, whereas enhancing the
radiation parameter keeps the Sherwood number unchanged and lowers the Nusselt number. The Nusselt and
Sherwood numbers are unaffected by the chemical reaction parameter.