Abstract
A numerical model is employed here to study seiche oscillations of layered or stratified fluids in a closed rectangular tank under various initial inclination angles of the free surface and interfacial layers to the normal water table as seiche setup conditions. Laboratory experiments were also conducted for layered sloshing in a rectangular tank. The numerical model was validated against the experimental data and the available numerical results. The effect of the setup angle on the maximum interfacial and free surface wave height time series were then studied in relation to their corresponding dominant frequency response. The effects of internal structures on the rate of wave decay were analyzed for internal and free surface waves with key findings being reported.
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