Natural convection and heat transfer of micropolar hybrid nanofluid over horizontal, inclined and vertical thin needle with power-law varying boundary heating conditions

Abstract

The present problem explores the various aspects of natural convection and heat transfer within the micropolar hybrid nanofluid flow. The fluid flow is taken for horizontal, inclined and vertical positions of moving thin needle under quadratic thermal radiation effects. The governing equations of the flow are formed by observing physical interpretation of the system and the related boundary conditions are obtained accordingly. Again, using relevant similarity transformations the fundamental equations are non-dimensionalized to obtain the system of equations. Thereafter, BVP4C in MATLAB use these equations to obtain the required solutions. These solutions helps in analysing the important aspects of the flow i.e., velocity, microrotation temperature, skin friction and Nusselt number profiles for different parameters utilizing graphical representation. From these results we observed that the velocity of the flow has been declined with rise in magnetic parameter but simultaneously has a larger value for greater angles when considered from horizontal to vertical transition. The reverse trend is observed in case of temperature profile with varying radiation parameter. Further, heat transfer rate is intensified at all positions of moving thin needle subject to power law variation of surface heat flux than wall temperature.

Analysing entropy generation of MHD (50:50) slip flow over an inclined needle

“…This research analyzes Lorentz force and viscous dissipation to predict propylene glycol-water mixture behavior, optimizing system design, controlling fluid flow, and enhancing heat transfer and transport efficiency [13] . This study investigates the effects of natural convection, micropolar hybrid nanofluid, needle orientation, and boundary heating conditions on heat transfer, fluid flow patterns, and temperature distribution in a thin needle [14] . This research investigated stratification in nanoliquids, examining the impact on fluid dynamics and microorganism behavior, potentially affecting bioconvection patterns and gyrotactic microorganism behavior [15,16] .…”