A stream function is a mathematical tool used in fluid mechanics to describe the flow of incompressible fluids. It is a scalar function whose contours represent the flow lines of the fluid. When the flow is two-dimensional, the stream function can help visualize the flow, as the flow velocity components can be obtained from this function. ### Key Characteristics of Stream Functions: 1. **Incompressible Flow**: Stream functions are primarily used for incompressible flow scenarios.
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