Abstract:
The study of hybrid nanoparticles continues to receive attention from researchers
because of its significance and relevance to the industries especially in the manufac
ture of hybrid-powered engines. Although, the most important exclusivity of hybrid
nanofluid refers to the composition of two or more variant types of dispersed nanopar
ticles. However, when this is carried out in the presence of a Lorentz force remains
an open question. This study is designed to investigate the three-dimensional flow of Al2O3− water nanofluid and Cu/Al2O3−water hybrid nanofluid within the thin boundary layer formed on a bidirectional linearly stretching surface with the thin
boundary layer, to establish, and compare the effects of stretching, magnetic parame
ters and volume fraction on the flow of nanofluid and hybrid nanofluid. The system of
governing equations which model the transport phenomena are non-dimensionalized
using suitable similarity variables. Numerical solution of the corresponding ordinary
differential equation, boundary value problem was obtained using the shooting tech
nique along with fourth-order Runge-Kutta integration scheme. It is found that the addition of Cu nanoparticles into A2O3− water nanofluid has a significant effect on the flow with the influence of Lorentz force along y− direction. The decrease in the vertical velocities of the fluids is guaranteed along x− and y− directions due to the increase in the value of the magnetic field parameter which is proportional to Lorentz
force. The volume fraction greatly increases the temperature of a fluid due to its high
thermal conductivity. The deceleration of the horizontal velocity for the motion of
nanofluid and hybrid nanofluid is ascertained with the effect of stretching parameter along x−direction. However, maximum local friction is established with suction when the effect of Lorentz force is minimal.
