Simulation of Free Surface Flows with Surface Tension with ANSYS CFX

Three different test cases involving free surface flows with surface tension were investigated with ANSYS CFX. Transient analyses were performed in all cases. The three cases were: (1) oscillations of a twodimensional cylindrical rod; (2) rise of liquid in a capillary; and (3) rise of an air bubble train through stagnant water. The mesh resolution, timestep, and solver settings required to obtain accurate results for the individual cases were investigated and are reported for the individual cases. Good agreement between the simulation results and results reported in the literature were obtained for the cases studied.

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