Entropy generation analysis of hybrid-nanofluid during natural convection through two coaxial cylinders partially filled with porous medium under magnetic field
Research laboratory in physics and sciences for engineering, LRPSI Sultan Moulay Slimane university, Polydisciplinary faculty, Beni Mellal, 23000, Morocco
The aim of this research is to analyze the magneohydrodynamic heat transmission in an annular space partially porous between two coaxial cylinders with a permeable interface saturated by a hybrid nanofluid (water-Cu/Al2O3) and study the entropy generation to better understand the heat transfer processes. The inner and outer cylinders are kept at a constant hot and cold temperature. The base walls are designed to be impermeable and insulated. A finite difference-based vorticity-stream function is used to solve the nonlinear coupled conservation equations using Successive Over Relaxation approach. The obtained numerical outcomes in terms of streamlines, isotherms, Nusselt and Bejan numbers, and entropy generation are presented to demonstrate the effect of various control parameters. The findings of this numerical simulation show that the increase in the Ra number improves the thermal energy transmission across the active wall. Further, a rise in nanoparticle concentration causes a rise in thermal conductivity, which contributes to enhancing the heat transfer rate. In addition, the mean entropy generation elements rise with increasing Rayleigh number, Darcy number, and nanoparticle concentration; however, with the exception of magnetic irreversibility, the reverse development is detected. Furthermore, the Bejan number is reduced in order to increase the Rayleigh and Darcy numbers.
Foukhari, Y., Sammouda, M., & Driouich, M. (2024). Entropy generation analysis of hybrid-nanofluid during natural convection through two coaxial cylinders partially filled with porous medium under magnetic field. Scientia Iranica, (), -. doi: 10.24200/sci.2024.62997.8159
MLA
Y. Foukhari; M. Sammouda; M. Driouich. "Entropy generation analysis of hybrid-nanofluid during natural convection through two coaxial cylinders partially filled with porous medium under magnetic field". Scientia Iranica, , , 2024, -. doi: 10.24200/sci.2024.62997.8159
HARVARD
Foukhari, Y., Sammouda, M., Driouich, M. (2024). 'Entropy generation analysis of hybrid-nanofluid during natural convection through two coaxial cylinders partially filled with porous medium under magnetic field', Scientia Iranica, (), pp. -. doi: 10.24200/sci.2024.62997.8159
VANCOUVER
Foukhari, Y., Sammouda, M., Driouich, M. Entropy generation analysis of hybrid-nanofluid during natural convection through two coaxial cylinders partially filled with porous medium under magnetic field. Scientia Iranica, 2024; (): -. doi: 10.24200/sci.2024.62997.8159
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