Numerical tests of vanishing diffusion stabilization in Oldroyd-B fluid flow simulations
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985840%3A_____%2F21%3A00554563" target="_blank" >RIV/67985840:_____/21:00554563 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21220/21:00355779
Result on the web
<a href="http://dx.doi.org/10.14311/TPFM.2021.014" target="_blank" >http://dx.doi.org/10.14311/TPFM.2021.014</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.14311/TPFM.2021.014" target="_blank" >10.14311/TPFM.2021.014</a>
Alternative languages
Result language
angličtina
Original language name
Numerical tests of vanishing diffusion stabilization in Oldroyd-B fluid flow simulations
Original language description
This work presents some numerical tests of finite element solution of incompressible Oldroyd-B fluids flows, using different types of numerical stabilization. In this study the diffusive term (Laplacian of extra stress) is added to the tensorial constitutive relation where it is multiplied by a coefficient, that is variable in time. The goal is to make this diffusion coefficient vanish in time, so that the final solution remains unaffected by the added diffusion term. A series of numerical tests was performed for the steady two-dimensional Oldroyd-B fluid flow in corrugated channel (tube) to compare different versions of the vanishing stabilization terms and assess their efficiency in enforcing the solution convergence, without affecting the final steady state.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
—
OECD FORD branch
10101 - Pure mathematics
Result continuities
Project
<a href="/en/project/GA19-04243S" target="_blank" >GA19-04243S: Partial differential equations in mechanics and thermodynamics of fluids</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Proceedings of Topical Problems of Fluid Mechanics 2021
ISBN
978-80-87012-76-5
ISSN
2336-5781
e-ISSN
—
Number of pages
8
Pages from-to
102-109
Publisher name
Institute of Thermomechanics AS CR, v. v. i.
Place of publication
Prague
Event location
on-line
Event date
Feb 17, 2021
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000853393400014