Tollmien-Schlichting route to elastoinertial turbulence in channel flow

  title={Tollmien-Schlichting route to elastoinertial turbulence in channel flow},
  author={Ashwin Shekar and Ryan Michael McMullen and Beverley J. McKeon and Michael D. Graham},
  journal={Physical Review Fluids},
Direct simulations of two-dimensional channel flow of a viscoelastic fluid have revealed the existence of a family of Tollmien-Schlichting (TS) attractors that is nonlinearly self-sustained by viscoelasticity [Shekar et al., J. Fluid Mech. 893, A3 (2020)]. Here, we describe the evolution of this branch in parameter space and its connections to the Newtonian TS attractor and to elastoinertial turbulence (EIT). At Reynolds number Re = 3000, there is a solution branch with TS-wave structure but… 
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