Taguchi analysis on hydromagnetic squeezed motion in hyperbolic tangent fluid induced by Riga sensor surface with multiple nanoscales

The current study investigates the transport phenomena of a hyperbolic tangent fluid considering tetra-hybrid nanofluid on a Riga sensor surface. The effects related to heat sink/source, stagnation point flow, magnetic field, Soret and Dufour are considered. A mathematical model is formulated based on the governing equations of mass transport, considering variable thermal properties, the Lorentz force, and hydrodynamic slip. Ordinary differential equations are obtained by incorporating similarity transformations and then resolved using the finite element method (FEM). Tetra-hybrid nanofluids contain four kinds of nanoparticles dispersed in a base fluid, and have growing applications in industrial cooling, electronic devices, biomedical engineering, and nanotechnology processes. A Taguchi design method is utilized to obtain the Nusselt number. It is noticed that the study of such a model has not been investigated yet using the combined utilization of the Taguchi method and the finite element method. It was addressed that enhancing the nanoparticle volume fraction increases the Nusselt number by up to 18.15 %, while the skin friction coefficient improves by 12.2 %. The Eckert number contributes the most (50 %) to the Nusselt number, the magnetic number contributes (21 %) to the Nusselt number, the Soret number contributes (16 %) to the Nusselt number and the heat sink number contributes 11 % to the Nusselt number.