A Numerical Simulation of the Trailing-Edge Rotor Effecton the Rudder Force

摘要

Numerous studies have indicated the potential use of the Magnus effect of the rotating cylinder for lifting devices employed in the marine industry. In addition, prior research has suggested that the rotating cylinder installed on the upper deck of a commercial vessel may play an energy-saving role; however, this idea may be applicable only to a very limited range of situations in ship design. To address the increasing need for greater rudder force, the present study proposes a special high-lift rudder system equipped with a trailing-edge rotor. The numerical simulation suggests that the trailing-edge rotor may play an important role in enhancing the circulation and refining the boundary layer of the rudder system. For example, the lift force of a conventional rudder system can be doubled if the circumferential velocity of the trailing-edge rotor reaches is twice the inflow velocity.