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Numerical investigation of laminar vortex shedding applying a discontinuous Galerkin Finite Element method

Niroobakhsh, Zahra ; Emamy, Nehzat ; Mousavi, Roozbeh ; Kummer, Florian ; Oberlack, Martin :
Numerical investigation of laminar vortex shedding applying a discontinuous Galerkin Finite Element method.
[Online-Edition: http://dx.doi.org/10.1504/PCFD.2015.10001170]
In: Progress in Computational Fluid Dynamics, An International Journal, 1 (1) p. 1. ISSN 1468-4349
[Artikel], (2015)

Offizielle URL: http://dx.doi.org/10.1504/PCFD.2015.10001170

Kurzbeschreibung (Abstract)

Two-dimensional vortex sheddings in the wakes of a circular cylinder and a NACA 0012 airfoil, respectively, are numerically investigated by applying a discontinuous Galerkin Finite Element method (DG). The fluid flow is assumed to be laminar and incompressible. The in-house code BoSSS, in which the projection scheme of [Karniadakis GE, Israeli M, Orszag SA. Journal of Computational Physics 1991; 97:414443] is implemented, is employed for performing the numerical simulations. In order to validate and assess this new approach, it has been applied to several generic flow configurations (i.e. flow past a cylinder, flow over an airfoil). For the cylinder, the flow for the low Reynolds numbers up to 100 is considered and the onset of vortex shedding is investigated. For the airfoil, the Strouhal numbers are computed for low to moderate angles of attack. The computed flow patterns around the airfoil are in a good agreement with the available experimental and numerical data.

Typ des Eintrags: Artikel
Erschienen: 2015
Autor(en): Niroobakhsh, Zahra ; Emamy, Nehzat ; Mousavi, Roozbeh ; Kummer, Florian ; Oberlack, Martin
Titel: Numerical investigation of laminar vortex shedding applying a discontinuous Galerkin Finite Element method
Sprache: Englisch
Kurzbeschreibung (Abstract):

Two-dimensional vortex sheddings in the wakes of a circular cylinder and a NACA 0012 airfoil, respectively, are numerically investigated by applying a discontinuous Galerkin Finite Element method (DG). The fluid flow is assumed to be laminar and incompressible. The in-house code BoSSS, in which the projection scheme of [Karniadakis GE, Israeli M, Orszag SA. Journal of Computational Physics 1991; 97:414443] is implemented, is employed for performing the numerical simulations. In order to validate and assess this new approach, it has been applied to several generic flow configurations (i.e. flow past a cylinder, flow over an airfoil). For the cylinder, the flow for the low Reynolds numbers up to 100 is considered and the onset of vortex shedding is investigated. For the airfoil, the Strouhal numbers are computed for low to moderate angles of attack. The computed flow patterns around the airfoil are in a good agreement with the available experimental and numerical data.

Titel der Zeitschrift, Zeitung oder Schriftenreihe: Progress in Computational Fluid Dynamics, An International Journal
Band: 1
(Heft-)Nummer: 1
Freie Schlagworte: BoSSS
Fachbereich(e)/-gebiet(e): 16 Fachbereich Maschinenbau
16 Fachbereich Maschinenbau > Fachgebiet für Strömungsdynamik (fdy)
Exzellenzinitiative > Graduiertenschulen > Graduate School of Computational Engineering (CE)
Exzellenzinitiative > Graduiertenschulen
Exzellenzinitiative
Hinterlegungsdatum: 13 Dez 2016 06:43
Offizielle URL: http://dx.doi.org/10.1504/PCFD.2015.10001170
ID-Nummer: doi:10.1504/PCFD.2015.10001170
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