quiv_divcurl Schlieren soap-film

Pierre Dérian
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More details and HQ on http://www.irisa.fr/fluminance/team/Pierre.Derian.html ...
Velocity vector plot and vorticity contours of estimated fluid motion from input schlieren images, using wavelet-based optical-flow methods.
This flow represents 2D grid-like turbulence generated by placing a comb in a soap film.

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