Impact of micropolar effects on nanofluid flow between two disks

Abstract

This paper investigates how ester-based nanofluids flow between two parallel disks when subjected to micropolar effects. Compared to traditional Newtonian fluids, micropolar fluids which exhibit spin inertia and micro-rotation provide a more thorough knowledge of the behaviour of complicated fluids. The ester-based nanofluid, selected due to its exceptional thermal characteristics and favourable environmental effects, is examined with different micropolar parameters to evaluate their impact on heat transfer rates and flow dynamics. Initially, we created a mathematical model to explain the fluid dynamics of ester-based micropolar nanofluids between two parallel disks using the Navier-Stokes equations. The suggested mathematical problem is converted into a non-linear ordinary differential equation (ODE) using the similarity transformation technique. We then solved the governing equations numerically using MATLAB's built-in BVP4c method. Through numerical simulations, we explored the velocity distribution, micro-rotation profiles and temperature profiles within the disk system. The results reveal that micropolar effects significantly enhance the thermal conductivity and viscosity of the nanofluid, leading to improved heat transfer efficiency and altered flow patterns. Nanoparticles in porous disk flow increase velocity and micro-rotation profiles, resulting in a more streamlined flow. Nanoparticle volume fraction also increases temperature, reducing thermal boundary layer thickness and enhancing convective heat transfer.

Keywords

• Micropolar
• Ester-based nanofluid
• Disk
• BVP4c
• Axisymmetric
• MHD