How do hydrodynamics work?

Hydrodynamics is the study of fluid in motion, specifically how it behaves when in motion or at rest. It involves understanding the principles of conservation of mass, momentum, and energy in fluid flow. Key concepts include Bernoulli's principle, which describes the relationship between fluid velocity and pressure, and the Navier-Stokes equations, which mathematically describe fluid flow. These principles are crucial in various fields such as engineering, meteorology, and oceanography.