Boundary Layer Surface Flow Visualization using Paint dots

^ Experimental surface flow pattern for 1 - 4 model

The result of the paint dot flow visualization. Poster paint dots are applied to the model which is placed in a water tunnel. The flowing water smears the paint and reveals the surface flow pattern. Compare this to Computed Surface Flow Pattern

There is also a video of how this process works on a 1-2 prolate spheroid

see 12pntdot