Effects of electric field, MHD micropolar hybrid nanofluid flow with mixed convection and thermal radiation across a flat surface

Abstract

Hybrid nanofluids significantly impact the thermal properties of pure fluids. This study examines the flow of a micropolar electrically conducting hybrid nanofluid in a mixed convective MHD environment over a flat surface. The enclosed fluid is a specialized water-based mixture of hybrid nanoparticles containing silver and alumina, uniformly dispersed to fill the enclosure. Suction and injection effects are applied to the vertically positioned plate within a permeable material. Further considerations include Joule heating, electrical effects, thermal radiation, and viscous dissipation. The nonlinear PDEs are converted into a dimensionless form and subsequently solved numerically using the bvp4c function in MATLAB. Results Show increased fluid mobility with magnetic and mixed convection factors, declining under micropolar component presence. Micropolar parameters enhance fluid micro rotational velocity. Thermal behavior diminishes with the higher electric field and rises with increased magnetic effects, heat source, radiation, Eckert number, and micropolar parameter. The velocity curve elevates with a higher electric field factor. The Nusselt number and dimensionless skin friction coefficient values are computed and graphically represented. The research finds applications in engineering and medicine, including Heat Exchangers, Microfluidics, Medical Imaging, Electroplating, and Electrokinetic Pumps. Electric field effects are pivotal in electrothermal thrusters for spacecraft propulsion, leveraging principles of magnetohydrodynamics (MHD) and hybrid nanofluid flow to enhance performance in the vacuum space.

Keywords

• Electric Field
• Hybrid Nanofluid
• Micropolar Fluid
• Mixed Convection
• MHD
• Thermal Radiation

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