The efficient and economical use of resources is one of the most important items on the international agenda today. Fuel economy is of prime importance to all commercial ship operations. Optimal hull form design with respect to resistance, propulsion and wake distribution in combination with a well chosen and optimized propulsion together remain the most effective measures for minimizing the energy consumption during ship operation. Several propulsion improving devices (PIDs) have been experimentally investigated in recent years. In this paper, CFD studies using the in-house RANS code FreSCo+ for ships with and without PIDs are presented. The computations include the resistance and wake predictions and numerical propulsion tests for a tanker with and without fins on the hull as well as with and without a duct fitted in front of the propeller.
展开▼
