Synergistic Heat Transfer Enhancement In Backward-Facing Step Geometries Using Hybrid Nanofluids And Passive Geometric Modifications: A Comprehensive Review. Int. J. Environ. Sci. [Internet]. 2025 Aug. 4 [cited 2026 Aug. 24];:1547-61. Available from: https://theaspd.com/index.php/ijes/article/view/5966