Sakri, Fadhilah Mohd, and Mohd Amzar Azizan. 2019. “Numerical Simulation of Air-Core Vortex Using an Axisymmetric Boundary Condition”. International Journal of Advanced Science and Technology 28 (8s), 01 - 08. https://sersc.org/journals/index.php/IJAST/article/view/828.