The stream function (Ļ) is a concept used in fluid dynamics to describe the flow of an incompressible and irrotational fluid in two dimensions. It’s a mathematical function that helps visualize and analyze fluid motion.Ā
- š is the stream function
- Vā is the free-stream velocity
- r is the radial distance from the origin (center) of the flow in polar coordinates
- š is the polar angle, measured in radians, with respect to a reference direction
- Ī is the strength of the source flow