Název:
On the influence of diffusion stabilization in Oldroyd-B fluid flow simulations
Autoři:
Pires, M. ; Bodnár, Tomáš Typ dokumentu: Příspěvky z konference Konference/Akce: Topical Problems of Fluid Mechanics 2020, Prague (CZ), 20200219
Rok:
2020
Jazyk:
eng
Abstrakt: This work presents some numerical tests of finite element solution of incompressible Oldroyd-B fluid flows. The effect of numerical stabilization using artificial stress diffusion is investigated in detail. The limits of Weissenberg number We for which it is possible to obtain the numerical solution were studied depending on the Reynolds number Re and the diffusion parameter. Series of numerical tests were performed for steady two-dimensional Oldroyd-B fluid flow in corrugated channel (tube). The numerical results clearly proved the advantage (higher attainable We) of stabilized numerical method over the classical formulation without the artificial stress diffusion.
Klíčová slova:
finite element method; numerical stabilization; Oldroyd-B fluid; stres diffusion Číslo projektu: GA19-04243S (CEP) Poskytovatel projektu: GA ČR Zdrojový dokument: Proceedings of Topical Problems of Fluid Mechanics 2020, ISBN 978-80-87012-74-1, ISSN 2336-5781 Poznámka: Související webová stránka: https://doi.org/10.14311/TPFM.2020.023
Instituce: Matematický ústav AV ČR
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Informace o dostupnosti dokumentu:
Dokument je dostupný v repozitáři Akademie věd. Původní záznam: http://hdl.handle.net/11104/0308144