A strategy to interface isogeometric analysis with Lagrangian finite elements—Application to incompressible flow problems
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- 作者：Raheel Rasool ; Callum J. Corbett ; Roger A. Sauer ; sauer@aices.rwth-aachen.de" class="auth_mail" title="E-mail the corresponding author
- 关键词：Incompressible Navier&ndash ; Stokes ; Isogeometric analysis ; Enriched finite elements ; SUPG/PSPG based stabilized FEM ; Internal and external fluid flow
- 刊名：Computers and Fluids
- 出版年：2016
- 出版时间：20 March 2016
- 年：2016
- 卷：127
- 期：Complete
- 页码：182-193
- 全文大小：1881 K
文摘
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A strategy to interface isogeometric analysis (IGA) with Lagrangian finite elements.
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Enriched finite elements are used to obtain a localized IGA-based enrichment for CFD.
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Provides similar accuracy as IGA at a cost similar to Lagrangian finite elements.
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Provides more accurate representation of the boundary surfaces.
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Provides higher-order evaluation of integrals only at regions where it is desired.