Basic Research for A Column Shaped Propulsion Assistance System

Abstract

Many attempts have been successfully made for improving propulsive efficiency of ships. Referring to the requirements for the further advances in energy savings in maritime transportation, review was made for the classical concepts of hydrodynamic principles such as Mugnus effect, boundary layer control and etc., and a Column-type Circular Cylinder Propulsion Assistance System is proposed. As a basic study, concept design was made and flow field was surveyed using two dimensional wind tunnel to investigate the possibility of utilizing hydrodynamic lift for ship propulsion assistance. The analysis and feasibility study are presented for the discussion.