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The topological asymptotic expansion for the Quasi-Stokes problem

Published online by Cambridge University Press:  15 October 2004

Maatoug Hassine  and
Mohamed Masmoudi
Maatoug Hassine
Affiliation:
ENIT-LAMSIN & FSM, Campus Universitaire, Le Belvédaire BP 37, 1002 Tunis, Tunisia; [email protected].
Mohamed Masmoudi
Affiliation:
Mathématiques pour l'Industrie et la Physique, UMR 5640, Université de Paul Sabatier, 118 route de Narbonne, 31032 Toulouse Cedex 4, France.
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Abstract

In this paper, we propose a topological sensitivity analysis for the Quasi-Stokes equations. It consists in an asymptotic expansion of a cost function with respect to the creation of a small hole in the domain. The leading term of this expansion is related to the principal part of the operator. The theoretical part of this work is discussed in both two and three dimensional cases. In the numerical part, we use this approach to optimize the locations of a fixed number of air injectors in an eutrophized lake.

Keywords

Topological optimizationtopological sensitivityQuasi-Stokes equationstopological gradientshape optimization.
Type
Research Article
Information
ESAIM: Control, Optimisation and Calculus of Variations , Volume 10 , Issue 4 , October 2004 , pp. 478 - 504
Copyright
© EDP Sciences, SMAI, 2004

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