Hydrodynamic Force on the Vertical Wall of a Portable Water Storage Tank: Nonlinear Peregrine Model

Abstract

In this study, the motion of free-surface generated by vertically dropping water through a nozzle into a portable water storage tank with a convex bottom in calm conditions was numerically simulated using the nonlinear Peregrine model. The hydrodynamic force at the vertical wall was calculated after measuring the maximum run-up amplitude of the free-surface. The degree of improvement of the results using a nonlinear model was identified by its comparison with numerical results using the linear Peregrine model. Finally, it is expected that the hydrodynamic forces on the vertical wall of the storage tank with a convex bottom can be reduced to a certain extent compared to the concave bottom and can therefore be utilized as basic data for the structural design of an ideal storage tank.