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A NURBS-based approach for shape and topology optimization of flow domains

Munz, Jakob and Schäfer, Michael (2019):
A NURBS-based approach for shape and topology optimization of flow domains.
In: 6th European Conference on Computational Mechanics (ECCM 6) / 7th European Conference on Computational Fluid Dynamics (ECFD 7), Glasgow, UK, pp. 3248-3257, [Online-Edition: http://www.eccm-ecfd2018.org/frontal/docs/Ebook-Glasgow-2018...],
[Book Section]

Abstract

In the present work a NURBS-based framework for shape and topology optimization is presented. The methodology uses fixed grids with immersed boundaries based on a Brinkman penalization method. Compared to other available approaches for topology optimization the number of design variables is reduced and a mathematical description of the solid boundaries is given by NURBS. Two test cases are used to investigate the presented method. The first one compares the proposed method with a traditional shape optimization approach using body-fitted grids. The second one proves the capability of the method for topological changes of the flow domain during the optimization process.

Item Type: Book Section
Erschienen: 2019
Creators: Munz, Jakob and Schäfer, Michael
Title: A NURBS-based approach for shape and topology optimization of flow domains
Language: English
Abstract:

In the present work a NURBS-based framework for shape and topology optimization is presented. The methodology uses fixed grids with immersed boundaries based on a Brinkman penalization method. Compared to other available approaches for topology optimization the number of design variables is reduced and a mathematical description of the solid boundaries is given by NURBS. Two test cases are used to investigate the presented method. The first one compares the proposed method with a traditional shape optimization approach using body-fitted grids. The second one proves the capability of the method for topological changes of the flow domain during the optimization process.

Title of Book: 6th European Conference on Computational Mechanics (ECCM 6) / 7th European Conference on Computational Fluid Dynamics (ECFD 7)
Place of Publication: Glasgow, UK
ISBN: 978-84-947311-6-7
Divisions: 16 Department of Mechanical Engineering
16 Department of Mechanical Engineering > Institute of Numerical Methods in Mechanical Engineering (FNB)
Date Deposited: 29 Jan 2019 06:29
Official URL: http://www.eccm-ecfd2018.org/frontal/docs/Ebook-Glasgow-2018...
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