TY - JOUR TI - Numerical investigation on comparative performance assessment of solar air heater with different artificial roughness elements in a triangular duct AU - SHAIK, R. AU - PUNNA, E. AU - GUGULOTHU, S.K. JO - Journal of Thermal Engineering PY - 2025 VL - 11 SP - 49 EP - 61 DO - 10.14744/thermal.0000903 ER -