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Sloshing phenomena of liquid in rectangular and circular tanks with and without sloshing damper have been simulated using a CFD method, namely a large eddy simulation method with standard Smagorinsky model. The decay of the wave amplitude in free oscillation, the resonance frequency and the amplitude response characteristics to a single-mode excitation are found to agree well with the experiment in the basic case of rectangular tank. The effects of the damper net have been modeled by introducing resistance in the flow and have been found to reproduce experimental results. The response characteristics to a real seismic oscillation of fluid in a realistic cylindrical petroleum tank have also been calculated with favorable results.

REPRODUCTION OF SLOSHING PHENOMENA AND SLOSHING DAMPER DEVICE BY CFD