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• W2889152090 endingPage "199" @default.
• W2889152090 startingPage "171" @default.
• W2889152090 abstract "In a wide range of applications it is desirable to optimally control a dynamical system with respect to concurrent, potentially competing goals. This gives rise to a multiobjective optimal control problem where, instead of computing a single optimal solution, the set of optimal compromises, the so-called Pareto set, has to be approximated. When the problem under consideration is described by a partial differential equation (PDE), as is the case for fluid flow, the computational cost rapidly increases and makes its direct treatment infeasible. Reduced order modeling is a very popular method to reduce the computational cost, in particular in a multi query context such as uncertainty quantification, parameter estimation or optimization. In this article, we show how to combine reduced order modeling and multiobjective optimal control techniques in order to efficiently solve multiobjective optimal control problems constrained by PDEs. We consider a global, derivative free optimization method as well as a local, gradient based approach for which the optimality system is derived in two different ways. The methods are compared with regard to the solution quality as well as the computational effort and they are illustrated using the example of the two-dimensional incompressible flow around a cylinder." @default.
• W2889152090 created "2018-09-07" @default.
• W2889152090 creator A5018125622 @default.
• W2889152090 creator A5049416946 @default.
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• W2889152090 date "2018-08-31" @default.
• W2889152090 modified "2023-09-30" @default.
• W2889152090 title "Multiobjective Optimal Control Methods for the Navier-Stokes Equations Using Reduced Order Modeling" @default.
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• W2889152090 doi "https://doi.org/10.1007/s10440-018-0209-7" @default.
• W2889152090 hasPublicationYear "2018" @default.
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