Flow Visualization
Free-stream Velocity
75 m/s
Flow Type
Steady
Unsteady
Visualization (multi-select)
Streamlines
Pathlines
Streaklines
Streamlines — tangent to instant velocity
Pathlines — particle trajectory over time
Streaklines — dye injected at fixed points
Controls
↺ Reset
Potential flow past a cylinder (2D cross-section of a sphere). In
Steady
flow all three line types coincide. Switch to
Unsteady
(vortex shedding) to see streamlines, pathlines and streaklines diverge. Uniform parallel flow enters from the left.