The hull-waterjet interaction of a planing trimaran

Hull-waterjet interaction is a key point in the research of waterjet-propelled crafts. The previous researches on hull-waterjet interaction mainly aim at displacement ships and planing monohulls, and mostly focus on speeds of FrL < 1.5, which has not included maximum speed of waterjet-propelled crafts in current engineering practice. Based on numerical and experimental research, this paper studies the hull-waterjet interaction of a high speed planing trimaran in the speed range of 0.68 < Fr▽<6.16 (0.322.0, indicating that the hull-waterjet interaction of this trimaran has positive effects on propulsion performance at semi-planing and planing state.