El-Behery, S. M. ., M. . H. Hamed, . M. A. . El-Kadi, and K. A. . Ibrahim. “Numerical Simulation and CFD-Based Correlation of Erosion Threshold Gas Velocity in Pipe Bends”. CFD Letters, vol. 2, no. 1, Jan. 2021, pp. 39-53, https://www.akademiabaru.com/submit/index.php/cfdl/article/view/3316.