Rempke, Arne (2023) Deformation of CFD Meshes with Anisotropic Cells in a Viscous Boundary Layer Using Line-Implicit Methods. In: 23rd STAB/DGLR Symposium on New Results in Numerical and Experimental Fluid Mechanics XIV, 154 (154), Seiten 273-283. Springer Nature Switzerland AG. STAB/DGLR Symposium 2022, 2022-11-09 - 2022-11-10, Berlin, Deutschland. doi: 10.1007/978-3-031-40482-5_26. ISBN 978-3-031-40481-8. ISSN 1612-2909.
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Offizielle URL: https://doi.org/10.1007/978-3-031-40482-5_26
Kurzfassung
Various numerical applications in the context of multidisciplinary high-fidelity aircraft design, e.g. fluid-structure interaction or shape optimization, require the consideration of changes in the geometry of the aircraft shape. Such geometry changes can be realized using mesh deformations, and we demonstrate such a volume mesh deformation method based on elasticity analogy in conjunction with line-implicit solvers. Line-implicit solvers have already been successfully used in CFD simulations with strongly anisotropic cells in a viscous boundary layer, and are now applied to mesh deformation problems of such meshes. In this approach, the solution of a block-tridiagonal subsystem of the Jacobian matrix is computed exactly using the Thomas algorithm. Here, the selection of the tridiagonal part - representing the lines - is of crucial importance for the speed of convergence. A new algorithm for line identification is presented and compared with existing ones. Also, a comparison and combination of these methods with multigrid methods is performed and the implications for industrially relevant test cases are demonstrated.
elib-URL des Eintrags: | https://elib.dlr.de/198222/ | ||||||||||||||||||||||||
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Dokumentart: | Konferenzbeitrag (Vortrag) | ||||||||||||||||||||||||
Titel: | Deformation of CFD Meshes with Anisotropic Cells in a Viscous Boundary Layer Using Line-Implicit Methods | ||||||||||||||||||||||||
Autoren: |
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Datum: | 23 September 2023 | ||||||||||||||||||||||||
Erschienen in: | 23rd STAB/DGLR Symposium on New Results in Numerical and Experimental Fluid Mechanics XIV | ||||||||||||||||||||||||
Referierte Publikation: | Ja | ||||||||||||||||||||||||
Open Access: | Nein | ||||||||||||||||||||||||
Gold Open Access: | Nein | ||||||||||||||||||||||||
In SCOPUS: | Ja | ||||||||||||||||||||||||
In ISI Web of Science: | Nein | ||||||||||||||||||||||||
Band: | 154 | ||||||||||||||||||||||||
DOI: | 10.1007/978-3-031-40482-5_26 | ||||||||||||||||||||||||
Seitenbereich: | Seiten 273-283 | ||||||||||||||||||||||||
Herausgeber: |
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Verlag: | Springer Nature Switzerland AG | ||||||||||||||||||||||||
Name der Reihe: | Notes on Numerical Fluid Mechanics and Multidisciplinary Design | ||||||||||||||||||||||||
ISSN: | 1612-2909 | ||||||||||||||||||||||||
ISBN: | 978-3-031-40481-8 | ||||||||||||||||||||||||
Status: | veröffentlicht | ||||||||||||||||||||||||
Stichwörter: | mesh deformation, CFD mesh, anisotropic cells, viscous boundary layer, line-implicit method, Thomas algorithm, line identification, numerical method, linear algebra, multigrid | ||||||||||||||||||||||||
Veranstaltungstitel: | STAB/DGLR Symposium 2022 | ||||||||||||||||||||||||
Veranstaltungsort: | Berlin, Deutschland | ||||||||||||||||||||||||
Veranstaltungsart: | nationale Konferenz | ||||||||||||||||||||||||
Veranstaltungsbeginn: | 9 November 2022 | ||||||||||||||||||||||||
Veranstaltungsende: | 10 November 2022 | ||||||||||||||||||||||||
Veranstalter : | Deutsche Strömungsmechanische Arbeitsgemeinschaft, STAB | ||||||||||||||||||||||||
HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||||||||||||||
HGF - Programm: | Luftfahrt | ||||||||||||||||||||||||
HGF - Programmthema: | Effizientes Luftfahrzeug | ||||||||||||||||||||||||
DLR - Schwerpunkt: | Luftfahrt | ||||||||||||||||||||||||
DLR - Forschungsgebiet: | L EV - Effizientes Luftfahrzeug | ||||||||||||||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | L - Virtuelles Flugzeug und Validierung | ||||||||||||||||||||||||
Standort: | Dresden | ||||||||||||||||||||||||
Institute & Einrichtungen: | Institut für Softwaremethoden zur Produkt-Virtualisierung | ||||||||||||||||||||||||
Hinterlegt von: | Rempke, Arne | ||||||||||||||||||||||||
Hinterlegt am: | 24 Okt 2023 14:52 | ||||||||||||||||||||||||
Letzte Änderung: | 24 Apr 2024 20:58 |
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