M. . S. Kassim, F. . A. Saleh, and A. . O.Samarmad, “EXPERIMENTAL AND NUMERICAL STUDY OF ENHANCEMENT HEAT TRANSFER COEFFICIENT IN SPIRAL FLUTED TUBE HEAT EXCHANGER WITH NANOFLUID”, J. eng. sustain. dev., vol. 19, no. 6, pp. 165–183, Nov. 2015, Accessed: May 06, 2025. [Online]. Available: https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/788