This paper describes an analytical model to calculate the setdown in waves with and without current. This model is based on a second order quadratic transfer function and a Lagrangian transformation for the effect of current. The method is validated against basin experiments with a large number of wave probes through the basin. The wave signals are separated in incoming and reflected bound and free waves based on the phase differences between the wave probes. The optimum probe spacing and transient phenomena in the restricted sized basin are discussed. The resulting separated bound wave shows good comparison to the setdown calculated with the analytical model.
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