Parametric study of the beta-sigma two-fluid model for simulating fully suspended slurry flow: Effect of flow conditions.

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985874%3A_____%2F21%3A00538048" target="_blank" >RIV/67985874:_____/21:00538048 - isvavai.cz</a>

Výsledek na webu

<a href="https://link.springer.com/article/10.1007/s11012-021-01314-6" target="_blank" >https://link.springer.com/article/10.1007/s11012-021-01314-6</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s11012-021-01314-6" target="_blank" >10.1007/s11012-021-01314-6</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Parametric study of the beta-sigma two-fluid model for simulating fully suspended slurry flow: Effect of flow conditions.

Popis výsledku v původním jazyce

As proven in a recently published paper [Messa GV, Matousˇek V (2020) Analysis and discussion of two fluid modelling of pipe flow of fully suspended slurry. Powder Technol 30:747 768.], the b-r two-fluid model is capable of accurately reproducing the main features of turbulent, fully-suspended slurry flows in horizontal pipes provided that suitable values of the two parameters b and r are chosen. At present, the case-specific nature of b and r and their lack of a clear physical meaning are the main obstacles that must be overcome to give the b-r two-fluid model value not only as interpretative tool, but also as a predictive one. An important preliminary step to achieve this goal is to disclose the mathematical essence of the b-r two-fluid model, namely, to interpret the fluid-dynamic solution on the grounds of the structure of the differential and discretized equations. Such a methodological approach is applied here to the benchmark case of turbulent slurry flow between two infinite, horizontal, parallel plates, focusing, in particular, on the influence of the bulkmean velocity of the slurry and the volumetric concentration of the solids in the flow. The study provides not only deeper insight into the b-r model, but also indicates important implications for alternative two-fluid models.

Název v anglickém jazyce

Parametric study of the beta-sigma two-fluid model for simulating fully suspended slurry flow: Effect of flow conditions.

Popis výsledku anglicky

As proven in a recently published paper [Messa GV, Matousˇek V (2020) Analysis and discussion of two fluid modelling of pipe flow of fully suspended slurry. Powder Technol 30:747 768.], the b-r two-fluid model is capable of accurately reproducing the main features of turbulent, fully-suspended slurry flows in horizontal pipes provided that suitable values of the two parameters b and r are chosen. At present, the case-specific nature of b and r and their lack of a clear physical meaning are the main obstacles that must be overcome to give the b-r two-fluid model value not only as interpretative tool, but also as a predictive one. An important preliminary step to achieve this goal is to disclose the mathematical essence of the b-r two-fluid model, namely, to interpret the fluid-dynamic solution on the grounds of the structure of the differential and discretized equations. Such a methodological approach is applied here to the benchmark case of turbulent slurry flow between two infinite, horizontal, parallel plates, focusing, in particular, on the influence of the bulkmean velocity of the slurry and the volumetric concentration of the solids in the flow. The study provides not only deeper insight into the b-r model, but also indicates important implications for alternative two-fluid models.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10305 - Fluids and plasma physics (including surface physics)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

Meccanica

ISSN

0025-6455

e-ISSN

1572-9648

Svazek periodika

56

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

31

Strana od-do

1047-1077

Kód UT WoS článku

000619687700001

EID výsledku v databázi Scopus

2-s2.0-85101210744