title: Nonequilibrium thermodynamics and the optimal path to turbulence in shear flows.
abstract: We determine the initial condition on the laminar-turbulent boundary closest to the laminar state using nonlinear optimization for plane Couette flow. Resorting to the general evolution criterion of nonequilibrium systems we optimize the route to the statistically steady turbulent state, i.e., the state characterized by the largest entropy production. This is the first time information from the fully turbulent state is included in the optimization procedure. We demonstrate that the optimal initial condition is localized in space for realistic flow domains.
authors.affiliation: Linné Flow Centre, SeRC, KTH Mechanics, SE-100 44 Stockholm, Sweden. antonios@mech.kth.se
authors.forename: Antonios
authors.initials: A
authors.lastname: Monokrousos
authors.forename: Alessandro
authors.initials: A
authors.lastname: Bottaro
authors.forename: Luca
authors.initials: L
authors.lastname: Brandt
authors.forename: Andrea
authors.initials: A
authors.lastname: Di Vita
authors.forename: Dan S
authors.initials: DS
authors.lastname: Henningson