Hydrodynamic Pressure Acting on a Ship Hull in Waves : 1st Report

Abstract

In order to study the hydrodynamic pressure on ship's hull travelling in regular head waves, model experiments have been carried out with two models of a container ship and an ore carrier. The following three kinds of experiments have been performed to investigate the components of the hydrodynamic pressure. (1) Experiment I : Measurement of the hydrodynamic pressure acting on a free running model in regular head waves. (2) Experiment II : Measurement of the hydrodynamic pressure acting on a restrained model in regular head waves. (3) Experiment III : Measurement of the hydrodynamic pressure acting on a model which is forced to oscillate sinusoidally in calm water. The results of each experiment are compared with those of theoretical calculation based upon the ordinary strip method and the validity of the calculation method to estimate the hydrodynamic pressure is discussed.