Local null controllability of the three-dimensional Navier-Stokes system with a distributed control having two vanishing components

Jean-Michel Coron (1) , Pierre Lissy (1)

1 LJLL - Laboratoire Jacques-Louis Lions

In this paper, we prove a local null controllability result for the three-dimensional Navier-Stokes equations on a (smooth) bounded domain of R^3 with null Dirichlet boundary conditions. The control is distributed into an (arbitrarily small) open subset and has two vanishing components. J.-L. Lions and E. Zuazua proved that the linearized system is not necessarily approximately controllable even if the control is distributed on the entire domain, hence it cannot be null controllable and the standard linearization method fails. We use the return method together with a new algebraic method inspired by the works of M.Gromov and previous results by M.Gueye.

Mots clés: Navier-Stokes System; Null controllability; Return method

Domaines: Optimisation et contrôle [math.OC]

Jean-Michel Coron, Pierre Lissy. Local null controllability of the three-dimensional Navier-Stokes system with a distributed control having two vanishing components. 2012. ⟨hal-00750249v1⟩