Turbulent eddies created by an obstacle are distorted by the sheared mean flow in a soap-film channel and become increasingly anisotropic as they move downstream (left to right).
From the article:
Janus Spectra in Two-Dimensional FlowsChien-Chia Liu, Rory T. Cerbus, and Pinaki Chakraborty
Phys. Rev. Lett. 117, 114502 (2016)
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