Hydraulic Model Study of South Yard Pier and Wave Screens

This report describes the results of a hydraulic model test carried out to study the effectiveness of the proposed South Yard pier in sheltering a submarine, two APL models, and a YRBM model from wave action. Various types of wave screens were also tested. The submarine model was found to be very stable in waves with periods ranging from 2.8 seoonds to 8.2 seoonds with no wave screen. In fact, no screen tested in the study was found to contribute significantly to the stability of the submarine. The existence of the proposed pier alone reduced the amplitudes of pitching, rolling, and heave oscillations of an APL model by roughly 50 percent. A submarine model moored to the pier reduced the oscillations of an APL by another 50 peroent.