Go With The Co-Flow To Stabilize Chaotic 'Whipping' In Microfluidic Jets

When researchers created a whipped jet in polydimethylsiloxane oil, a viscous dielectric material, they were surprised to see the chaotic motion switch over to a steady-state helical structure. So they got a high-speed, microscope-based video camera operating at 50,000 frames per second to study the waveforms emerging from the experimental jets, which were less than five microns in diameter. The resulting video allowed precise examination of the waveforms produced when the liquid flowed out of the glass needle and into the second liquid flowing around it. read more

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