streamline

A streamline is a visual representation used in fluid dynamics to illustrate the path that fluid particles follow within a flow field. Imagine tiny lines that gently trace the direction and movement of the fluid; these lines show how the fluid moves at every point, helping to visualize flow patterns. If the flow is steady, the streamlines are smooth and do not cross. They provide insight into velocity, pressure changes, and flow behavior around objects, making complex fluid motions easier to interpret and analyze in engineering, physics, and related fields.