👉 Hydrodynamics is a branch of physics that deals with the behavior and interactions of fluids, such as water, gases, or solids, at low speeds. It involves understanding how these substances flow through a fluid environment, including pressure, viscosity, density, surface tension, and other factors that influence their movement. In simple terms, hydrodynamics describes the properties of liquids and gases in motion, and it is an important field of study for many areas of science and engineering.