Motion of a submerged body in a near-surface water environment
Vitaly L. Zemlyak, Alexandra V. Pogorelova, В. М. Козин
Abstract
This study considered the motion of a submerged body near the free surface of a liquid and a liquid covered with ice cover, both theoretically and experimentally. Mathematically, the body was modelled using the source–sink system. The ice cover was modelled as a thin elastic plate floating on the surface of the liquid. We analysed the influence of the ice cover thickness and the motion of a submerged body on the wave resistance of the body, its lift force, and ice deflections. The relationship between the vertical displacement and speed of movement of the submerged body, as well as the effect on the investigated parameters of the ice cover, were established. The parameters of flexural–gravity waves generated from the motion of the body near the lower ice surface were determined.