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Title:
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Convergence to suitable weak solutions for a finite element approximation of the Navier–Stokes equations with numerical subgrid scale modeling
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Author:
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Badia, Santiago; Gutierrez Santacreu, Vicente
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Other authors:
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Universitat Politècnica de Catalunya. Departament d'Enginyeria Civil i Ambiental; Universitat Politècnica de Catalunya. ANiComp - Anàlisi numèrica i computació científica |
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Abstract:
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The final publication is available at Springer via http://dx.doi.org/10.1007/s10915-016-0304-8 |
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Abstract:
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In this work we prove that weak solutions constructed by a variational multiscale method are suitable in the sense of Scheffer. In order to prove this result, we consider a subgrid model that enforces orthogonality between subgrid and finite element components. Further, the subgrid component must be tracked in time. Since this type of schemes introduce pressure stabilization, we have proved the result for equal-order velocity and pressure finite element spaces that do not satisfy a discrete inf-sup condition. |
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Abstract:
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Peer Reviewed |
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Subject(s):
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-Àrees temàtiques de la UPC::Matemàtiques i estadística::Anàlisi numèrica::Mètodes en elements finits
-Navier-Stokes equations--Numerical solutions
-Navier–Stokes equations
-Suitable weak solutions
-Stabilized finite element methods
-Subgrid scales
-Navier-Stokes, Equacions |
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Rights:
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Document type:
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Article - Submitted version
Article |
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