Animating Rayleigh-Taylor Instability in SideFX Houdini

It comes as no surprise that Houdini's amazing FLIP fluids has no problem animating the Rayleigh-Taylor instability. I did very little work to get this effect and you can read about it at my blog here: http://flexmonkey.blogspot.co.uk/2017/01/animating-rayleigh-taylor-instability.html