I was doing some publicity images for work and quite liked this one. It is a visualisation of the surface pressure fields and vorticies on a cavitating NACA 0009 foil. The surfaces as colour by pressure and the vortices, visualised as the 10000 mark of the Q criterion, are coloured by the velocity magnitude. The cavitation was handled by a custom in house module for OpenFOAM that implements the Singhal “Full Cavitation Model”.
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