“NUMERICAL SIMULATION OF MIXED CONVECTION HEAT TRANSFER AND RESULTING ENTROPY USING TWO VIBRATING CYLINDERS INSIDE A CLOSED CAVITY FILLED WITH Cu-AL2O3-WATER HYBRID NANOFLUID” (2026) THE IRAQI JOURNAL FOR MECHANICAL AND MATERIALS ENGINEERING, 25(1), pp. 131–158. doi:10.32852/d26szn68.