Abstract
The simulation of the collapse of a liquid column problem is presented in this work. The numerical analysis is done using a finite volume technique, where the well-known VOF technique is applied to describe the free surface motion. The adopted mathematical model is given by the Navier-Stokes equations for incompressible flows. These equations are solved in the whole domain occupied by both fluids (liquid and air) together with the interface motion equation. The study focuses on the analysis of two liquids with different viscosities. The response is assessed by considering various spatial discretizations when a turbulent model is applied. The computed numerical results are compared with those obtained using a fixed-mesh finite element technique and with experimental measurements reported in the literature.
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