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Intermittency in a Locally Forced Plane Couette Flow

S. Bottin 1, 2 Olivier Dauchot 1, 2 F. Daviaud 1, 2 
2 SPHYNX - Systèmes Physiques Hors-équilibre, hYdrodynamique, éNergie et compleXes
SPEC - UMR3680 - Service de physique de l'état condensé, IRAMIS - Institut Rayonnement Matière de Saclay
Abstract : 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
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S. Bottin, Olivier Dauchot, F. Daviaud. Intermittency in a Locally Forced Plane Couette Flow. Physical Review Letters, American Physical Society, 1997, 79, pp.4377-4380. ⟨10.1103/PhysRevLett.79.4377⟩. ⟨cea-01373959⟩



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