Study on Wave Added Resistance of Ships in Oblique Waves Based on Panel Method

When the ship is sailing at sea, wave added resistance has great influence on the rapidity and economy of the ship.With the increasing pressure of energy and environmental protection, IMO has proposed the EEDI formula of the newly built ships,which restricts the energy consumption standard of civil ships more strictly. Therefore, a panel method based on three dimensional potential flow theory is proposed to study the problem of wave added resistance in this paper. Firstly, the method solves the motion responses of the ship in the time domain, and then calculates the wave added resistance of the ship by near-field pressure integration method. The wave added resistance of S175 container ship in head and oblique waves are calculated and compared with the experimental data, and the accuracy of the proposed method are verified. At last, the influence of Froude number and wave direction angle on wave added resistance is studied. The proposed method provides an approach of satisfactory accuracy and efficiency for the development of high-performance new ship forms, optimization of ship hull lines, comprehensive performance evaluation of ships and practical navigation guidance.