75th Annual Meeting of the APS Division of Fluid Dynamics (November 20, 2022 — November 22, 2022)

P0049: PAINTING VORTICES WITH CELLULOSE NANOCRYSTALS

Authors
  • Reza Ghanbari, Chalmers University of Technology
  • Kesavan Sekar, Chalmers University of Technology
  • Viney Ghai, Chalmers University of Technology
  • Kim Nygård, MAX IV Laboratory
  • Ann Terry, MAX IV Laboratory
  • Roland Kádár, Chalmers University of Technology
DOI: https://doi.org/10.1103/APS.DFD.2022.GFM.P0049

The photo illustrates the vortex flow cells ‘painted’ by cellulose nanocrystals in an aqueous media. The suspension was subjected to a complex shear flow field in a counter-rotating Taylor-Couette flow geometry. The observation of colorful vortices, indicative of their orientation and alignment is stemming from the singular optical visualization technique. The harmonies and the frequencies of the phenomena are reminiscent of musical notes.

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