Abstract
We measured heave and pitch motions of Wigley model with a forward velocity in the circular compact wave basin (AMOEBA, diameter=1.6m) having absorbing wave makers around it. It was observed that the measurement results in the AMOEBA are the same as that in the large basin. This indicates that we can carry out the experiments of ship motions with the good accuracy in the AMOEBA instead of the large basin. This wave basin can easily generate the directional regular waves. By using it's performance, we show an advance technique to get the directional characteristics of ship motions with forward velocity. To confirm it, experiments of ship motions in bi-directional regular waves were performed.
