Numerical Simulation on Near-water-surface Skipping Motion of Trans-media Vehicle

Abstract

Abstract When a trans-media vehicle impacts the water surface at a small angle, it will bounce and take off and then re-enter the water, which is called near-water-surface Skipping Motion. The study of this kind of movement is of great significance to the high maneuvering penetration of ships or aircraft near sea level. This paper adopted the method of numerical simulation, selected the SST k-ω turbulence model, combining the N-S equation and the six-degree-of-freedom (6DOF) algorithm, and used the overall dynamic grid technology to calculate the vehicle entry condition at speed of 50m/s, 100m/s, 150m/s &10°, 20°, 30° angle of attack, and the near-water-surface skipping motion characteristics of the vehicle were explored, which provided a reference for studying the high maneuvering motion of offshore plane trans-media vehicles.