82 citations · 170 across the 4 of their papers we have counts for
4 papers
Tollmien-Schlichting route to elastoinertial turbulence in channel flow
Ashwin Shekar, Ryan M. McMullen, Beverley J. McKeon +1
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-…
Self-sustained elastoinertial Tollmien-Schlichting waves
Ashwin Shekar, Ryan M. McMullen, Beverley J. McKeon +1
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…
Critical-layer structures and mechanisms in elastoinertial turbulence
Ashwin Shekar, Ryan M. McMullen, Sung-Ning Wang +2
Simulations of elastoinertial turbulence (EIT) of a polymer solution at low Reynolds number are shown to display localized polymer stretch fluctuations. These are very similar to s…
Exact coherent states with hairpin-like vortex structure in channel flow
Ashwin Shekar, Michael D. Graham
Hairpin vortices are widely studied as an important structural aspect of wall turbulence. The present work describes, for the first time, nonlinear traveling wave solutions to the…