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Dhiren Mistry: Coherence in chaos | by Engineering at Cambridge
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Dhiren Mistry: Coherence in chaos

Submitted by Dhiren Mistry. © Department of Engineering, University of Cambridge


A jet of turbulent fluid is generated by a series of pumps that pushes fluid out of a round nozzle into a large tank of water. The jet fluid is identified by using a fluorescent dye that emits orange light when illuminated with a green laser. Once the pumps have been switched off the jet flow is left to slowly decay, which is illustrated in this image. The coherent swirling patterns and mushroom-clouds are artefacts of the fluid topology that was present when the flow was fully turbulent. The green light of the laser was filtered out using an optical filter positioned in front of the camera.

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Taken on October 17, 2013