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High order cut finite element methods for the Stokes problem
Center for Biomedical Computing, Simula Research Laboratory.
Umeå University, Faculty of Science and Technology, Department of Mathematics and Mathematical Statistics.
Department of Mathematical Sciences, Chalmers University of Technology and University of Gothenburg.
2015 (English)In: Advanced Modeling and Simulation in Engineering Sciences, ISSN 2213-7467, Vol. 2, no 1, 1-23 p., 24Article in journal (Refereed) PublishedText
Abstract [en]

We develop a high order cut finite element method for the Stokes problem based on general inf-sup stable finite element spaces. We focus in particular on composite meshes consisting of one mesh that overlaps another. The method is based on a Nitsche formulation of the interface condition together with a stabilization term. Starting from inf-sup stable spaces on the two meshes, we prove that the resulting composite method is indeed inf-sup stable and as a consequence optimal a priori error estimates hold.

Place, publisher, year, edition, pages
Springer, 2015. Vol. 2, no 1, 1-23 p., 24
Keyword [en]
Interface problem, High order, Stokes problem, Nitsche’s method, Unfitted finite element methods
National Category
URN: urn:nbn:se:umu:diva-114526DOI: 10.1186/s40323-015-0043-7OAI: diva2:896710
Swedish Foundation for Strategic Research , AM13-0029Swedish Research Council, 2013-4708Swedish Research Council, 2014-6093

The work was also supported by The Research Council of Norway through a Centres of Excellence grant to the Center for Biomedical Computing at Simula Research Laboratory, project number 179578.

Available from: 2016-01-22 Created: 2016-01-22 Last updated: 2016-02-25Bibliographically approved

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Larson, Mats G.
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