BANK EFFECTS ON A SHIP MOVING THROUGH A SHORT DREDGED CHANNEL

This paper presents a first description and analysis of a series of captive force measurements and free-response trajectory tests, which have been performed with a tanker model, moving along long and short side wall banks and platform shallows, and off-set from the center-line of a dredged channel. The results from the measurements of lateral force and yawing moment are displayed in various graphs, and they are compared with calculations according to known theories. The ultimate aim of the project is the formulation of an analytical model, which will simulate the bank effects experienced, and which, in a particular trial case, will make it possible to predict the free response of the model from the forces measured at the captive tests.