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Unsteady Flow of Hybrid Nanofluid with MagnetohydrodynamicsRadiation-Natural Convection Effects in a U-Shaped Wavy Porous Cavity

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Computer Modeling in Engineering & Sciences 2024年第12期141卷 2225-2251页

作者： taher armaghani Lioua Kolsi Najiyah Safwa Khashi’ie Ahmed Muhammed Rashad Muhammed Ahmed Mansour Taha Salah Aboulbaba Eladeb Department of Engineering West Tehran BranchIslamic Azad UniversityTehran***Iran Department of Mechanical Engineering College of EngineeringUniversity of Ha’ilHa’il City81451Saudi Arabia Fakulti Teknologi dan Kejuruteraan Mekanikal Universiti Teknikal Malaysia MelakaHang Tuah JayaDurian TunggalMelaka76100Malaysia Department of Mathematics Faculty of ScienceAswan UniversityAswan81528Egypt Department of Mathematics Faculty of ScienceAssuit UniversityAssuit71515Egypt Basic and Applied Sciences Department College of Engineering and TechnologyArab Academy for Science&Technology and Maritime Transport(AASTMT)Aswan Branch81511AswanEgypt Department of Chemical and Materials Engineering College of EngineeringNorthern Border UniversityArar91431Saudi Arabia

In this paper,the unsteady magnetohydrodynamic(MHD)-radiation-natural convection of a hybrid nanofluid within a U-shaped wavy porous cavity is *** problem has relevant applications in optimizing thermal management systems in electronic devices,solar energy collectors,and other industrial applications where efficient heat transfer is very *** study is based on the application of a numerical approach using the Finite Difference Method(FDM)for the resolution of the governing equations,which incorporates the Rosseland approximation for thermal radiation and the Darcy-Brinkman-Forchheimer model for porous *** was found that the increase of Hartmann number(Ha)causes a reduction of the average Nusselt number(Nu),with a maximum decrease of 25%observed as Ha increases from 0 to *** addition,the influence of the wall’s wave amplitude and the heat source length on the heat transfer rate was quantified,and it was revealed that at high wave amplitude,the average Nu increases by up to 15%.These findings suggest that manipulating magnetic field strength and cavity geometry can significantly enhance thermal *** novelty of this is related to the exploration of a U-shaped wavy cavity,which is not covered in previous studies,and to the detailed examination of the combined effects of magnetic fields,radiation,and hybrid nanofluids.

关键词： Thermal radiation wavy wall MHD natural convection hybrid-nanofluid porous medium

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