Elsweijer, Sandro (2021) Curved Domain Adaptive Mesh Refinement with Hexahedra. Projektarbeit, Hochschule Bonn-Rhein-Sieg.
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Kurzfassung
In tree-based adaptive mesh refinement (AMR) we store refinement trees in the cells of an unstructured coarse mesh. This lets us combine the speed and simpler management of structured refinement trees with the more flexible mesh generation of the unstructured coarse mesh. But this creates a conflict between performance and geometrical accuracy. If we favor speed we reduce the cells in our coarse mesh and hence reduce the accuracy of our geometrical representation. If we want more accurate results we generate a finer coarse mesh and lose performance by managing more cells in our unstructured coarse mesh. To mitigate this conflict we present the prototype of an geometry description which we implement in an already existing library. With this description we build geometry adapted hexahedral refinement trees, which also support high-order curved boundary cells. We also present examples on how to use this description. Moreover, we test the speedup of this new algorithm compared with coarse meshes with different geometrical errors.
elib-URL des Eintrags: | https://elib.dlr.de/186571/ | ||||||||
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Dokumentart: | Hochschulschrift (Projektarbeit) | ||||||||
Zusätzliche Informationen: | Erstgutachter: Prof. Dr. Dirk Reith Betreuer: Jan Kleinert, Johannes Holke | ||||||||
Titel: | Curved Domain Adaptive Mesh Refinement with Hexahedra | ||||||||
Autoren: |
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Datum: | 19 Juli 2021 | ||||||||
Referierte Publikation: | Nein | ||||||||
Open Access: | Ja | ||||||||
Seitenanzahl: | 18 | ||||||||
Status: | veröffentlicht | ||||||||
Stichwörter: | Geometry, Adaptive mesh refinement, High-performance Computing, high order, Software, h-refinement, p-refinement | ||||||||
Institution: | Hochschule Bonn-Rhein-Sieg | ||||||||
Abteilung: | Elektrotechnik, Maschinenbau und Technikjournalismus | ||||||||
HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||
HGF - Programm: | Raumfahrt | ||||||||
HGF - Programmthema: | Technik für Raumfahrtsysteme | ||||||||
DLR - Schwerpunkt: | Raumfahrt | ||||||||
DLR - Forschungsgebiet: | R SY - Technik für Raumfahrtsysteme | ||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | R - Aufgaben SISTEC | ||||||||
Standort: | Köln-Porz | ||||||||
Institute & Einrichtungen: | Institut für Softwaretechnologie > High-Performance Computing Institut für Softwaretechnologie | ||||||||
Hinterlegt von: | Holke, Johannes | ||||||||
Hinterlegt am: | 25 Mai 2022 13:59 | ||||||||
Letzte Änderung: | 25 Mai 2022 13:59 |
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