Intermittency in a Locally Forced Plane Couette Flow

S. Bottin (1, 2) , Olivier Dauchot (1, 2) , F. Daviaud (1, 2)

1 SPEC - UMR3680 - Service de physique de l'état condensé
2 SPHYNX - Systèmes Physiques Hors-équilibre, hYdrodynamique, éNergie et compleXes

The plane Couette flow displays a globally subcritical transition to turbulence. When forced by a thin wire introduced in the central plane, the basic flow bifurcates towards a new state of streamwise vortices which break down through a complex spatiotemporal regime. When a bead is introduced in the central plane, only a few vortices are generated. Their destabilization occurs via a new type of temporal intermittency hard to understand within the framework of dynamical systems

Domains: Physics [physics]

S. Bottin, Olivier Dauchot, F. Daviaud. Intermittency in a Locally Forced Plane Couette Flow. Physical Review Letters, 1997, 79, pp.4377-4380. ⟨10.1103/PhysRevLett.79.4377⟩. ⟨cea-01373959⟩