Movement of an immersed body in a near-surface water environment at a shallow bottom

Abstract

The forces and moments, acting on an immersed body from the side of the liquid, have a significant effect on the nature of its motion. The depth of the water area, in which the body moves, can have a significant influence on the parameters under consideration. Despite the importance of studying these parameters, which are responsible for the safety and maneuverability of an underwater vehicle, there are practically no theoretical and especially experimental works on this topic. In this article, the authors propose an algorithm developed on the basis of the ANSYS 19 R2 Academic Research software package, which allows determining the forces and moments acting on an immersed body asymmetric shape when it moves in a near-surface aquatic environment at different speeds with a limited bottom depth. The obtained results are compared with the data of model experiments. The influence of the depth of the water area on the dependences of the studied parameters has been established.