Dirichlet control of unsteady Navier-Stokes type system related to Soret convection by boundary penalty method

Ravindran, S. S.

doi:10.1051/cocv/2013086

Ravindran, S. S.

ESAIM: Control, Optimisation and Calculus of Variations, Volume 20 (2014) no. 3, p. 840-863

Abstract

In this paper, we study the boundary penalty method for optimal control of unsteady Navier-Stokes type system that has been proposed as an alternative for Dirichlet boundary control. Existence and uniqueness of solutions are demonstrated and existence of optimal control for a class of optimal control problems is established. The asymptotic behavior of solution, with respect to the penalty parameter ϵ, is studied. In particular, we prove convergence of solutions of penalized control problem to the corresponding solutions of the Dirichlet control problem, as the penalty parameter goes to zero. We also derive an optimality system and determine optimal solutions. In order to illustrate the theoretical results and the practical utility of control, we numerically address the problem of controlling unsteady convection with Soret effect using a gradient-based method. Numerical results show the effectiveness of the approach.

MR 3264226 | Zbl 1301.35093

DOI : https://doi.org/10.1051/cocv/2013086
Classification: 35Q30, 35B40, 76B75, 49J20, 65M60, 76R99
Keywords: boundary penalty, dirichlet boundary control, Navier-stokes type system, soret convection

@article{COCV_2014__20_3_840_0,
     author = {Ravindran, S. S.},
     title = {Dirichlet control of unsteady Navier-Stokes type system related to Soret convection by boundary penalty method},
     journal = {ESAIM: Control, Optimisation and Calculus of Variations},
     publisher = {EDP-Sciences},
     volume = {20},
     number = {3},
     year = {2014},
     pages = {840-863},
     doi = {10.1051/cocv/2013086},
     zbl = {1301.35093},
     mrnumber = {3264226},
     language = {en},
     url = {http://www.numdam.org/item/COCV_2014__20_3_840_0}
}

Ravindran, S. S. Dirichlet control of unsteady Navier-Stokes type system related to Soret convection by boundary penalty method. ESAIM: Control, Optimisation and Calculus of Variations, Volume 20 (2014) no. 3, pp. 840-863. doi : 10.1051/cocv/2013086. http://www.numdam.org/item/COCV_2014__20_3_840_0/

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