curioso77 said:I don'n know how is the shape of the submerged body but you can start with a search on google about von karman streets (valid for cilinders). Also you can found some graphs in "theory of boundary layer", a classic book (the author is schligting, I do not remember exactly the spelling).
Hydrodynamics is the study of fluid motion and the forces that influence it. It is a branch of physics that deals with the behavior of fluids, such as water and air, in motion.
Hydrodynamics has many practical applications, such as in designing ships and submarines, predicting weather patterns, and understanding the flow of blood in the human body. It is also used in engineering and environmental studies.
The basic principles of hydrodynamics include the conservation of mass, momentum, and energy. In other words, the total amount of fluid, its motion, and its energy remain constant unless acted upon by external forces.
Hydrodynamics and hydraulics are closely related, but they have different focuses. Hydrodynamics deals with the motion of fluids, while hydraulics focuses on the use of fluids to generate power or control machinery. In simple terms, hydrodynamics is the science behind fluid motion, while hydraulics is the practical application of that science.
Some common examples of hydrodynamics in everyday life include the flow of water in a river, the movement of air in a wind tunnel, and the behavior of waves in the ocean. It also plays a role in household activities such as filling a bathtub or using a garden hose.