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Isogeometric Shape Optimization in Fluid-Structure Interaction

Abstract : The objective of this work is to examine the potential of isogeometric methods in the context of multidisciplinary shape optimization. We introduce a shape optimization problem based on a coupled fluid-structure system, whose geometry is defined by NURBS (Non-Uniform Rational B-Spline) curves. This shape optimization problem is then solved by using either an isogeometric approach, or a classical grid-based approach. In spite of the fact that optimization results do not show any major differences, conceptional advantages of the new isogeometric method become apparent. In particular, control points of the spline can be directly handled as design variables without the need of a spline-fit and consequently geometry errors can be excluded at every stages of the optimization loop.
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https://hal.inria.fr/inria-00598367
Contributor : Régis Duvigneau <>
Submitted on : Friday, June 17, 2011 - 2:02:20 PM
Last modification on : Wednesday, October 14, 2020 - 4:24:27 AM
Long-term archiving on: : Thursday, March 30, 2017 - 11:46:46 AM

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  • HAL Id : inria-00598367, version 2

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Christoph Heinrich, Régis Duvigneau, Louis Blanchard. Isogeometric Shape Optimization in Fluid-Structure Interaction. [Research Report] RR-7639, INRIA. 2011. ⟨inria-00598367v2⟩

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