Bubbly flow using Volume of Fluid (VOF) method of ANSYS CFX. Image shows liquid phase velocity fields for inlet velocity of 0.453 m/s at (a) t = 1.5 ms (b) t = 6.5 ms (c) t = 16.5 ms. A grid size of 32 cells per bubble diameter per dimension and a time step of 0.00001 s has been incorporated.