The following videos are the range finding experiments for what will be my third publication (Feb-Mar?) It is an interesting fluid phenemenon that comes from forcing apart two plates with a very thin film of fluid between them. The fluid is glycerin, and each video represents approximately 0.3 seconds of action.
These images were captured at between 1000-4000 frames per second, giveing about a minute of action at 30 frames per second. The typical Hele-Shaw fingering instabilities grow from the outside of the plate until overtaken by cavitations which experience their own interfacial instabilities and interactions with adjacent cavitations. Here are a couple of the most interesting frames: TODO!
The reason that this is particularly interesting is that this phenomenon and the columnar to equiaxed transitions are extremely similar in morphology as well as underlying mathematical features.
I should have a draft out soon after the next set of experiments! Look for it!