Title
A Posteriori Error Estimates For A Distributed Optimal Control Problem Of The Stationary Navier-Stokes Equations
Abstract
In two and three dimensional Lipschitz, but not necessarily convex, polytopal domains, we propose and analyze a posteriori error estimators for an optimal control problem involving the stationary Navier-Stokes equations; control constraints are also considered. We devise two strategies of discretization: a semidiscrete scheme where the control variable is not discretized and a fully discrete scheme where the control is discretized. For each solution technique, we design an a posteriori error estimator that can be decomposed as the sum of contributions related to the discretization of the state and adjoint equations and, additionally, the discretization of the control variable for when the fully discrete scheme is considered. We prove that the devised error estimators are reliable and also explore local efficiency estimates. Numerical experiments reveal a competitive performance of adaptive loops based on the devised a posteriori error estimators.
Year
DOI
Venue
2021
10.1137/20M1329792
SIAM JOURNAL ON CONTROL AND OPTIMIZATION
Keywords
DocType
Volume
optimal control problems, Navier-Stokes equations, finite elements, a posteriori error estimates, adaptive finite element methods
Journal
59
Issue
ISSN
Citations 
4
0363-0129
0
PageRank 
References 
Authors
0.34
0
4
Name
Order
Citations
PageRank
Alejandro Allendes143.92
Fuica Francisco200.34
Enrique Otárola38613.91
Quero Daniel400.34