METHOD FOR DETERMINING THE POSITIONAL HYDRODYNAMIC CHARACTERISTICS OF AN UNDERWATER OBJECT Russian patent published in 2022 - IPC B63H25/00 G05D1/00 

FIELD: underwater vehicles.

SUBSTANCE: invention relates to the creation of underwater vehicles and can be used to predict the trajectories of underwater vehicles that perform complex maneuvering. The method includes forming a three-dimensional electronic model of an underwater object, a computational grid is formed around this three-dimensional electronic model. In the computational domain occupied by the computational grid, the distribution of flow velocity and pressure fields is determined, the fluid velocity at the input relative to the flow boundary of the computational domain is set equal to the linear velocity of the underwater object, while, unlike the prototype, at the input relative to the flow boundary of the computational area, the direction of the flow velocity vector is sequentially set in accordance with the possible angular displacements of the underwater object relative to the flow at the angles of attack α and drift β. Stationary hydrodynamic effects on an underwater object are determined at different values ​​of angles of attack α and drift β, they are analyzed and then the positional hydrodynamic characteristics of the underwater object are determined.

EFFECT: increased safety and control accuracy.

1 cl, 2 dwg