WAKE ADAPTED HIGH EFFICIENCY RUDDERS
The rudder plays an important role in the propulsion of the ship because it interacts with the propeller, recovering part of the rotational energy contained in the water flow that leaves the propeller.
A well-design of the rudder must ensure the maneuvering response in service conditions of the vessel.
Rudder blade optimization from a power efficiency point of view requires a previous analysis of the water speeds downstream the propeller, to optimize the geometry and profiles of the blade for maximum power recovery. In this case, hydrodynamic study of the hull, propeller and rudder must be carried out altogether. The design is done applying optimization techniques coupled with potential and viscous CFD codes, helping to define the optimum profile geometry in each section.
VICUSdt has experience in the design of adapted rudders, improving the propulsive efficiency of the ship by approximately 6%. These improvements have been stated by means of tests in towing tanks.