Hydrodynamics is the study of the motion and behavior of fluids, particularly liquids like water. It involves the analysis of how fluids move and interact with their surroundings, as well as the forces and pressures exerted by fluid flow. Hydrodynamics is used in a variety of fields, including engineering, physics, and environmental science, to study phenomena such as fluid dynamics, fluid mechanics, and fluid properties. This research area is crucial for understanding and predicting the behavior of fluids in various applications, such as in the design of ships, airplanes, pipelines, and weather systems.