Free vortices are rotating flows of fluid that occur in a region where there are no external forces acting on them. They are characterized by a circular motion and can be found in various natural phenomena, such as whirlpools and tornadoes. In a free vortex, the fluid moves in a way that the velocity increases as you move closer to the center. The concept of free vortices is important in fields like fluid dynamics and aerodynamics. Understanding how these vortices behave helps scientists and engineers design better systems, such as aircraft wings and watercraft, by predicting how fluids will interact with surfaces.