Efficient PDE constrained shape optimization based on Steklov-Poincaré-type metrics. (English) Zbl 1354.49095
Summary: Recent progress in PDE constrained optimization on shape manifolds is based on the Hadamard form of shape derivatives, i.e., in the form of integrals at the boundary of the shape under investigation, as well as on intrinsic shape metrics. From a numerical point of view, domain integral forms of shape derivatives seem promising, which instead require an outer metric on the domain surrounding the shape boundary. This paper tries to harmonize both points of view by employing a Steklov-Poincaré-type intrinsic metric, which is derived from an outer metric. Based on this metric, efficient shape optimization algorithms are proposed, which also reduce the analytical labor involved in the derivation of shape derivatives.
MSC:
| 49Q10 | Optimization of shapes other than minimal surfaces |
| 49M30 | Other numerical methods in calculus of variations (MSC2010) |
| 65K10 | Numerical optimization and variational techniques |
| 35Q93 | PDEs in connection with control and optimization |
| 57N25 | Shapes (aspects of topological manifolds) |
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