Multiresolution spline wavelets simulation of rotating MHD hybrid nanofluid (<i>Au</i> − <i>Zn</i>, <i>C</i> ₂ <i>H</i> ₆ <i>O</i> ₂) flow between porous stretching surfaces

Abstract Advancements in industrial thermal systems have led to intensified research efforts on heat transfer mechanisms by scientists and engineers. However, the low thermal conductivity of conventional fluids such as ethylene glycol, water, transformer oils, and vegetable oils limits the thermal efficiency of the systems. To address this limitation, nanofluids are recognized for their superior thermophysical qualities and employed to achieve better thermal performance than conventional fluids. Motivated by these enhanced properties, the present work investigates the rotating magnetohydrodynamic (MHD) flow of an ethylene glycol-based hybrid nanofluid between two permeable boundaries. Gold (Au) and Zinc (Zn) nanoparticles are suspended in ethylene glycol as the base fluid. Firstly, the governing partial differential equations of motion for rotating surfaces are transformed into a system of nonlinear ordinary differential equations using a similarity transformation. Then, a robust composite numerical scheme combining quasilinearization with multiresolution B-spline wavelets collocation method is utilized to efficiently simulate the transformed equations. The effects of emerging parameters on velocity, temperature, Nusselt number and skin friction coefficient are analyzed through tables and graphical illustrations. The results demonstrate the effectiveness of the proposed approach and offer valuable insights into heat transfer enhancement, with potential applications in advanced cooling technologies and rotating fluid systems.