Fluid mechanics is the study of how fluids - liquids and gases - behave under various conditions. This field of study investigates the motion and properties of fluids, such as their viscosity, turbulence, and pressure. Fluid mechanics is essential in various engineering disciplines, such as aerospace, automotive, and environmental engineering, to design and analyze systems involving fluid flow, such as pumps, pipelines, and aircraft wings. Researchers in fluid mechanics use mathematical and computational methods to study and predict the behavior of fluids, leading to advancements in technology and improvements in various industries.