Impact of five obstacles with constant temperatures on the mixed convection flow of water/copper nanofluid in a rectangular cavity with a magnetic field

• DOI: 10.1016/j.rinp.2024.107424
• Publication Date: 2024-01-30T17:27:00Z
• Authors: Jawed Mustafa; Saeed Alqaed; Shahid Husain; Mohsen Sharifpur
• Keywords: Lattice Boltzmann methods; Cavity wall; Constant (computer programming)

In this research, we conduct a computational investigation into the mixed convection flow of copper/water nanofluids (NFs) within rectangular cavity, utilizing Lattice Boltzmann Method (LBM). The cavity is uniquely configured with five high-temperature obstructions (HOBs), and vary their dimensions positions to evaluate Nusselt numbers (Nu) across range Richardson (Ri). three walls excluding moveable top wall, are thermally insulated, while latter maintained at lower temperature. A constant magnetic field (MCF) exerts influence Ri spanning from 0.01 100, HOBs ranging 0.1 0.5, bottom wall 0.25 0.4. This numerical executed using customized in-house code, focusing on examining heat transfer (HTR) dynamics cavity. Our findings reveal that augmenting height positioning them closer cold significantly enhances average number (Nuav). Conversely, an increase in leads reduction Nuav wall. Specifically, most notable enhancement, 66.7 % Nuav, occurs = when elevated 0.5. On other hand, increment 100 results 79.4 Nuav. Furthermore, elevating 0.4 produces substantial 44.3