Self-sustained elastoinertial Tollmien–Schlichting waves

  title={Self-sustained elastoinertial Tollmien–Schlichting waves},
  author={Ashwin Shekar and Ryan Michael McMullen and Beverley J. McKeon and Michael D. Graham},
  journal={Journal of Fluid Mechanics},
Direct simulations of two-dimensional plane channel flow of a viscoelastic fluid at Reynolds number $Re=3000$ reveal the existence of a family of attractors whose structure closely resembles the linear Tollmien–Schlichting (TS) mode, and in particular exhibits strongly localized stress fluctuations at the critical layer position of the TS mode. At the parameter values chosen, this solution branch is not connected to the nonlinear TS solution branch found for Newtonian flow, and thus represents… 
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