Hamza Gouidmi, Razik Benderradji, Abdelhadi Beghidja, and Tahar Tayebi. “Numerical Study of Upward Vertical Two-Phase Flow through an Annulus Concentric Pipe”. Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, vol. 58, no. 2, Mar. 2024, pp. 187-06, https://semarakilmu.com.my/journals/index.php/fluid_mechanics_thermal_sciences/article/view/3188.