Original title: On the influence of diffusion stabilization in Oldroyd-B fluid flow simulations
Authors: Pires, M. ; Bodnár, Tomáš
Document type: Papers
Conference/Event: Topical Problems of Fluid Mechanics 2020, Prague (CZ), 20200219
Year: 2020
Language: eng
Abstract: 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.
Keywords: finite element method; numerical stabilization; Oldroyd-B fluid; stres diffusion
Project no.: GA19-04243S (CEP)
Funding provider: GA ČR
Host item entry: Proceedings of Topical Problems of Fluid Mechanics 2020, ISBN 978-80-87012-74-1, ISSN 2336-5781
Note: Související webová stránka: https://doi.org/10.14311/TPFM.2020.023

Institution: Institute of Mathematics AS ČR (web)
Document availability information: Fulltext is available in the digital repository of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0308144

Permalink: http://www.nusl.cz/ntk/nusl-438210


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Research > Institutes ASCR > Institute of Mathematics
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