In this paper, we are interested in finding the optimal shape of a magnet. The criterion to maximize is the jump of the electromagnetic field between two different configurations. We prove existence of an optimal shape into a natural class of domains. We introduce a quasi-Newton type algorithm which moves the boundary. This method is very efficient to improve an initial shape. We give some numerical results.
@article{M2AN_2002__36_2_223_0, author = {Henrot, Antoine and Villemin, Gr\'egory}, title = {An optimum design problem in magnetostatics}, journal = {ESAIM: Mathematical Modelling and Numerical Analysis - Mod\'elisation Math\'ematique et Analyse Num\'erique}, volume = {36}, year = {2002}, pages = {223-239}, doi = {10.1051/m2an:2002012}, mrnumber = {1906816}, zbl = {1054.49030}, language = {en}, url = {http://dml.mathdoc.fr/item/M2AN_2002__36_2_223_0} }
Henrot, Antoine; Villemin, Grégory. An optimum design problem in magnetostatics. ESAIM: Mathematical Modelling and Numerical Analysis - Modélisation Mathématique et Analyse Numérique, Tome 36 (2002) pp. 223-239. doi : 10.1051/m2an:2002012. http://gdmltest.u-ga.fr/item/M2AN_2002__36_2_223_0/
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