On the Vessel Energy Requirement Prediction From the Acceleration Stage Towing Experiments on Models

Abstract

One of the most crucial tasks for naval architects is computing the energy required to meet the ship's operational needs. When predicting a ship's energy requirements, a series of resistance tests on a scaled model vessel is carried out in the constant speed stage. Another important component is the ship's hydrodynamic added mass, which should also be considered when performing the seakeeping analysis. The second law of dynamics states that all this information, that is, the hull resistance dependence on the vessel's speed and the added mass, is accessible from just one acceleration stage towing test done up to the maximal speed. Therefore, this work aims to generalize Froude's scaling procedure from the model to full-scale vessels for accelerated motion.