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• W2786811224 abstract "Aerodynamic shape optimization has many industrial applications. Existing methods, however, are so computationally demanding that typical engineering practices are to either simply try a limited number of hand-designed shapes or restrict oneself to shapes that can be parameterized using only few degrees of freedom. In this work, we introduce a new way to optimize complex shapes fast and accurately. To this end, we train Geodesic Convolutional Neural Networks to emulate a fluidynamics simulator. The key to making this approach practical is remeshing the original shape using a polycube map, which makes it possible to perform the computations on GPUs instead of CPUs. The neural net is then used to formulate an objective function that is differentiable with respect to the shape parameters, which can then be optimized using a gradient-based technique. This outperforms state- of-the-art methods by 5 to 20% for standard problems and, even more importantly, our approach applies to cases that previous methods cannot handle." @default.
• W2786811224 created "2018-02-23" @default.
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• W2786811224 date "2018-02-12" @default.
• W2786811224 modified "2023-10-04" @default.
• W2786811224 title "Geodesic Convolutional Shape Optimization" @default.
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• W2786811224 hasPublicationYear "2018" @default.
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