Hydraulic Jump Formation in Water Sloshing Within an Oscillating Tank

An experimental investigation on the formation of dynamic hydraulic jumps in an oscillating rectangular container was performed using a high-resolution, high-speed digital imaging system. The present work investigates driven angular roll oscillations using a state-of-the-art motion simulator and a transparent rectangular container. A hydraulic jump was observed traversing between the walls of the tank when the container was oscillated near the surface-wave resonance frequency based on liquid depth. The hydraulic jump was imaged and its characteristics were measured using image processing software. It was found that the directionally based hydraulic jump formation frequency matches the driven frequency. However, the phase difference between the two is dependent on the ratio of the driven frequency to resonance frequency. Furthermore, the spatial characteristics of the jump are dependent on the amplitude and frequency of the oscillation.

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