Measurement and estimation of waves generated by a small ship in port

Many theoretical studies on waves generated by relatively large ships have been done, and many design experiments have been undertaken to reduce wave resistance using models in a towing tank or a circulating water channel. However, little research has been conducted on waves generated by relatively small real ships. Occasionally, waves generated in the port by small ships traveling freely at high speeds cause severe sea conditions for moored loading ships, other small boat, and visitors on the pier. In particular, large waves generated in port by powerful tugboats can affect small boat in passing, moored small boats, yachts in marinas and yacht harbor, and people using recreational sea areas. The purpose of this paper is to discuss the experimental measurement of ship waves generated in port by powerful tugboat and other small boats at high speeds, and to examine the estimations of heights, periods and direction of ship waves.