“Heat Transfer and Pressure Drop in Turbulent Flow through an Eccentric Converging-Diverging Tube with Twisted Tape Inserts”, J. eng. sustain. dev., vol. 16, no. 2, pp. 178–192, Jun. 2012, Accessed: May 19, 2024. [Online]. Available: https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1209