“…Several experimental and numerical studies have been carried out on natural convection heat transfer in enclosures under boundary conditions, however, studies about a partially divided enclosures are rarely investigated [58]. Such applications concern cooling of electronic devices, jet impingement [59], enhancement of room air [60], flow and temperature distribution in heat-loaded furnaces [61], heat exchanger design [62], etc. The proposed approach, initially implemented and validated in [4], was shown to be completely suitable for simulating such multi-material problems.…”