Fluid dynamics is one of two branches of fluid mechanics, which is the study of fluids and how forces affect them.
Fluid dynamics is “the branch of applied science that is concerned with the movement of liquids and gases,” according to the American Heritage Dictionary. Fluid dynamics is one of two branches of fluid mechanics, which is the study of fluids and how forces affect them. (The other branch is fluid statics, which deals with fluids at rest.)
Scientists across several fields study fluid dynamics. Fluid dynamics provides methods for studying the evolution of stars, ocean currents, weather patterns, plate tectonics and even blood circulation. Some important technological applications of fluid dynamics include rocket engines, wind turbines, oil pipelines and air conditioning systems.
Read full article: Live Science: What Is Fluid Dynamics?