IMPLEMENTATION OF TURBULENCE DAMPING IN THE OPENFOAM MULTIPHASE FLOW SOLVER INTERFOAM
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F22%3A00353447" target="_blank" >RIV/68407700:21220/22:00353447 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.24425/ather.2022.140923" target="_blank" >https://doi.org/10.24425/ather.2022.140923</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.24425/ather.2022.140923" target="_blank" >10.24425/ather.2022.140923</a>
Alternative languages
Result language
angličtina
Original language name
IMPLEMENTATION OF TURBULENCE DAMPING IN THE OPENFOAM MULTIPHASE FLOW SOLVER INTERFOAM
Original language description
In the presented work Egorov’s approach (adding a source term to the ω-equation in the k-ω model, which mimics the damping of turbulence close to a solid wall) was implemented in on the subclass of shear stress transport models. Hence, turbulence damping is available for all shear stress transport type models, including hybrid models that are based on the ω-equation. It is shown that turbulence damping improves the prediction of the axial velocity profile not only for Reynolds-averaged Navier–Stokes simulation but also for detached eddy simulation and delayed detached eddy simulation models. Furthermore, it leads to a more realistic estimation of the pressure drop and, hence, to a more correct prediction of the liquid level. In this paper, simulation results for four different turbulence models are presented and validated by comparison with experimental data. Furthermore, the influence of the magnitude of the damping factor on the pressure drop in the channel is investigated for a variety of different gas-to-liquid flow rate ratios. These investigations show that higher gas-to-liquid flow rate ratios require higher damping factors to correctly predict the pressure drop. In the end, advice is formulated on how an appropriate damping factor can be determined for a specific test case.
Czech name
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Czech description
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Classification
Type
J<sub>SC</sub> - Article in a specialist periodical, which is included in the SCOPUS database
CEP classification
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OECD FORD branch
20303 - Thermodynamics
Result continuities
Project
—
Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Archives of Thermodynamics
ISSN
1231-0956
e-ISSN
2083-6023
Volume of the periodical
43
Issue of the periodical within the volume
140923
Country of publishing house
PL - POLAND
Number of pages
23
Pages from-to
21-43
UT code for WoS article
000789653900002
EID of the result in the Scopus database
2-s2.0-85129678325