Study of chemical properties of hybrid nanofluid flow between two permeable disks with suspension of carbon nanotubes using Yamada Ota and Xue models
Aisha Naeem, Zaheer Abbas, Muhammad Yousuf Rafiq
Abstract
Single-walled and multi-walled carbon nanotubes (SWCNTs and MWCNTs), known for their remarkable thermal conductivity, are widely used in thermal interface materials, heat sinks, and various cooling solutions, especially in electronics and advanced engineering applications. Additionally, Disk flow plays a vital role in fluid mechanics that finds extensive applications in a lot of engineering and industrial disciplines, etc. So, motivated by the practical significance of disk flow by using carbon nanotubes, the main objective of this study is to investigate the fully developed flow of magnetized hybrid nanofluids containing SWCNT and MWCNT nanoparticles between two closely spaced permeable flat disks. The energy equation also considers the effects of thermal radiation and heat generation/absorption. Analytical solutions for both accelerating and decelerating velocities are derived using the Jacobi elliptic sine-squared function. The velocity profiles follow a plane-Poiseuille parabolic law at low Reynolds numbers. Maximum velocity is examined at the central region while starts declining and becomes minimum at the surface of disks. Symmetric velocity profiles are noted for both accelerating and decelerating flow. Accelerating velocity descends with the rise in all parameters while decelerating velocity declines for the upsurge in pressure gradient and magnetic parameter and decreases for the increment in Darcy number. Velocity profiles for the current study are graphically compared with the previous study in the absence of MHD and porosity for the validation and authenticity of recent work. Temperature increases with a rise in the heat source parameter, while it decreases due to thermal radiation effects. A graphical comparison of the Yamada Ota and Xue models for temperature profiles shows higher values for the Yamada Ota model. Furthermore, the Nusselt number increases with greater heat source/sink and radiative parameters.