The Effect of Forward Speed on Sway Force and Yaw Moment for Planing Hulls

Planing hulls, commonly used in many areas, have different hydrodynamic behavior than the displacement even calm water. Therefore, this makes calculation of maneuvering parameters these hulls appealing. In present study, a planing hull's numerical static drift analyses are performed using unsteady RANS approach to evaluate sway force and yaw moment at angles attack advance velocities. The results show that considerably affected by velocity change, resulting variation derivatives above 50%. Thus, forward speed should be included calculations for accurate prediction especially pre-planning regimes.