76th Annual Meeting of the APS Division of Fluid Dynamics (November 19, 2023 — November 21, 2023)

P0056: A polymer’s odyssey towards chaos

Authors
  • Theofilos Boulafentis, University College London
  • Stavroula Balabani, University College London
DOI: https://doi.org/10.1103/APS.DFD.2023.GFM.P0056

Adding polymers into fluids turns them elastic. Enclosed between two cylinders, with the inner one rotating, these polymeric fluids work their way towards chaos through various states. The figure shows vorticity Q-isosurfaces in a Taylor-Couette flow of a polymer solution as a function of elasticity. As the elasticity increases, large-scale structures like Taylor-vortices or ribbons attenuate and elasto-inertial turbulence sets in. 

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