E. A. Zangana, Hamdi. “EFFECT OF VORTEX GENERATORS ON A FRICTION FACTOR IN AN EQUILATERAL TRIANGULAR DUCT”. Anbar Journal of Engineering Science 1, no. 2 (November 1, 2008): 78–86. Accessed June 7, 2025. https://ajes.uoanbar.edu.iq/ajes/article/view/359.