MHD natural convection in a differentially heated cavity filled with a Cu-water nanofluid using FVM
Abstract This investigation presents a numerical exploration of magnetohydrodynamic (MHD) natural convection within a differentially heated square cavity containing Cu-water nanofluid (NF) that has a Prandtl number of 6.2, considering variable thermophysical properties. The impacts of Rayleigh number between 10 3 and 10 7 , nanoparticle volume fraction between 0 and 9%, and Hartmann number Ha between 0 and 100, on flow behavior and heat transport (HT) characteristics are examined. Results indicate that increasing the Rayleigh number enhances fluid motion and HT, while the inclusion of Cu nanoparticles further augments HT due to improved thermal conductivity. However, high concentrations of nanoparticles can reduce the efficiency of convective HT. The presence of a horizontal magnetic field, represented by the Hartmann number, was found to decelerate fluid motion due to the Lorentz force, diminishing the effectiveness of convection and shifting the dominant HT mode towards conduction.
Authors
- Abuzar Ghaffari (ORCID: https://orcid.org/0000-0002-8345-4571)
- Farid Berrahil (ORCID: https://orcid.org/0000-0001-9393-7641)
- Ibrahim Mahariq (ORCID: https://orcid.org/0000-0002-7222-3014)
- Mohamed Kezzar (ORCID: https://orcid.org/0000-0003-2042-7696)
- Abdelkader Filali (ORCID: https://orcid.org/0000-0002-5794-565X)
- Mohamed Kherief Nacereddine
- Mohamed Rafik Sari (ORCID: https://orcid.org/0000-0002-8636-8863)
- Taseer Muhammad (ORCID: https://orcid.org/0000-0002-0838-2731)
- Adil Darvesh (ORCID: https://orcid.org/0000-0003-4906-3072)
- Usman Usman (ORCID: https://orcid.org/0009-0009-4826-9678)
- Mohamed Sadek Kehil
Institutions
- Badji Mokhtar-Annaba University (DZ)
- University Frères Mentouri Constantine 1 (DZ)
- Applied Science Private University (JO)
- Shandong University (CN)
- Gulf University for Science & Technology (KW)
- China Medical University (TW)
- University of Balochistan (PK)
- Hazara University (PK)
- University of Okara (PK)
- Shandong Transportation Research Institute (CN)
- China Medical University Hospital (TW)
- École Normale Supérieure de Constantine (DZ)
- Centre Universitaire de Mila (DZ)
- École Normale Supérieure de Bouzareah Alger (DZ)
- University of Education (PK)
- King Khalid University (SA)
- National University of Sciences and Technology (PK)
- University of Skikda (DZ)
Publication Details
- Journal
- Case Studies in Thermal Engineering
- Published
- 2025-05-16
- DOI
- https://doi.org/10.1016/j.csite.2025.106350
- Citations
- 3
- Primary Topic
- Nanofluid Flow and Heat Transfer
- Type
- article
- Field-Weighted Citation Impact
- 2.02
Funders
- King Khalid University