Towards the assessment of the predictive capacity of the β-σ two-fluid model for pseudo-homogeneous slurry flow in pipes

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F23%3A00368778" target="_blank" >RIV/68407700:21110/23:00368778 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.30825/4.14-11.2023" target="_blank" >https://doi.org/10.30825/4.14-11.2023</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.30825/4.14-11.2023" target="_blank" >10.30825/4.14-11.2023</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Towards the assessment of the predictive capacity of the β-σ two-fluid model for pseudo-homogeneous slurry flow in pipes

Popis výsledku v původním jazyce

This paper focuses on the numerical simulation of turbulent, pseudo-homogeneous slurry flows in pipes through the β-σ two-fluid model, developed by the authors and collaborators in previous research. The two-fluid model gives its name to the presence of two main calibration coefficients, namely, σ, associated with the turbulent dispersion of the particles, and β, related with the inter-phase friction and to the wall shear stress produced by the solid phase. In a recently published article, the role played by β and σ on different features of the CFD solution has been established for different flow conditions, and a procedure for the calibration of the two coefficients has been proposed. The present contribution investigates the extrapolability of previously calibrated coefficients to different conditions in terms of pipe diameter, particle type, and in-situ concentration. The experimental data used to support conclusions and recommendations from the numerical study were obtained from previously published literature. The findings of this study not only contribute to a deeper comprehension of the β-σ two-fluid model, but they also provide a methodological background for the development of computational tools for industrial practitioners and academic researchers.

Název v anglickém jazyce

Towards the assessment of the predictive capacity of the β-σ two-fluid model for pseudo-homogeneous slurry flow in pipes

Popis výsledku anglicky

This paper focuses on the numerical simulation of turbulent, pseudo-homogeneous slurry flows in pipes through the β-σ two-fluid model, developed by the authors and collaborators in previous research. The two-fluid model gives its name to the presence of two main calibration coefficients, namely, σ, associated with the turbulent dispersion of the particles, and β, related with the inter-phase friction and to the wall shear stress produced by the solid phase. In a recently published article, the role played by β and σ on different features of the CFD solution has been established for different flow conditions, and a procedure for the calibration of the two coefficients has been proposed. The present contribution investigates the extrapolability of previously calibrated coefficients to different conditions in terms of pipe diameter, particle type, and in-situ concentration. The experimental data used to support conclusions and recommendations from the numerical study were obtained from previously published literature. The findings of this study not only contribute to a deeper comprehension of the β-σ two-fluid model, but they also provide a methodological background for the development of computational tools for industrial practitioners and academic researchers.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20101 - Civil engineering

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Proceedings of 20th International Conference on Transport & Sedimentation of Solid Particles

ISBN

978-83-7717-392-3

ISSN

0867-7964

e-ISSN

—

Počet stran výsledku

12

Strana od-do

148-159

Název nakladatele

Wroclaw University of Environmental And Life Sciences

Místo vydání

Wroclaw

Místo konání akce

Wroclaw

Datum konání akce

26. 9. 2023

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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