Fluid dynamics and motion simulation of underwater glide vehicle

As a underwater vehicle with new thrust mode, the underwater glide vehicle had shown some enormous advantages. When it is moving, it changes its motion trajectory through changing the gravity, buoyancy and location of gravity, lateral wing. The underwater glide vehicle had many advantages, such as simple structure, low resistance, low noise, high utilize ratio of energy, and it can fit the need of manufacture cost, energy expend, and long time navigation, so it can be used as a kind of long time auto underwater carry platform or surveillant platform. [1] This paper presents a dynamics model of under-water glide vehicle. The underwater glide vehicle has a compressed body and a pair glide hydrofoil, and it is propelled and controlled through changing the gravity and location of gravity. Section 2 introduces the dimensional dynamics model of underwater glide vehicle. Section 3 presents the model for fluid dynamics of underwater glide vehicle. Section 4 provides the simulation results of the glide motion of the underwater glide vehicle. Finally, Section 5 draws conclusions.