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A stabilization algorithm of the Navier–Stokes equations based on algebraic Bernoulli equation
Authors:L Amodei  J‐M Buchot
Institution:Institut de Mathématiques de Toulouse, Université Paul Sabatier, , 31062 Toulouse Cedex 9, France
Abstract:In this paper, we consider the stabilization of the nonstationary incompressible Navier–Stokes equations around a stationary solution by a boundary linear feedback control. The feedback operator is obtained from the solution of the algebraic Bernoulli equation associated with the penalized linearized Navier–Stokes equations around an unstable stationary solution and is used to locally stabilize the original nonlinear equations. We give the explicit factorized form of the stabilizing solution of the algebraic Bernoulli equation. The numerical effectiveness of this approach is demonstrated by stabilizing the vortex shedding behind a circular obstacle. Copyright © 2011 John Wiley & Sons, Ltd.
Keywords:Riccati equation  Bernoulli equation  Lyapunov equation  feedback stabilization  Navier–  Stokes equations
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