A modification of predictive three-component model for turbulent flows of complex slurries in pipelines based on experimental results
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F20%3A00342942" target="_blank" >RIV/68407700:21110/20:00342942 - isvavai.cz</a>
Výsledek na webu
<a href="https://doi.org/10.2478/johh-2020-0019" target="_blank" >https://doi.org/10.2478/johh-2020-0019</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.2478/johh-2020-0019" target="_blank" >10.2478/johh-2020-0019</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
A modification of predictive three-component model for turbulent flows of complex slurries in pipelines based on experimental results
Popis výsledku v původním jazyce
The paper describes a mathematical and physical modelling of flow of complex slurries in pipelines, i.e. a flow of slurries composed of solids covering a very broad range of particle sizes that overlaps more than one flow patterns – non-Newtonian, pseudohomogeneous, heterogeneous and fully-stratified. A typical examples are residual products (“tailings”) from mining industry with normal average particle sizes of 20 to 100 μm or more. Experimental results of flows of complex slurries composing of non-Newtonian carrier fluid and three fractions of glass particles in 50 mm pipe are presented. Depending on the particle size, particles show different flow patterns and therefore considerable differences in pressure drops. Fine particles tend behave as a homogeneous matter, while coarser particles exhibit heterogeneous behaviour and even coarser particles form a sliding bed. A mathematical 3-component predictive model for turbulent flow of complex slurries is presented based on well-established semi-empirical formulae developed originally for flows with Newtonian carrier. The predicted values of pressure drops show very reasonable agreement with experimental results and indicate suitability of the model for engineering practice.
Název v anglickém jazyce
A modification of predictive three-component model for turbulent flows of complex slurries in pipelines based on experimental results
Popis výsledku anglicky
The paper describes a mathematical and physical modelling of flow of complex slurries in pipelines, i.e. a flow of slurries composed of solids covering a very broad range of particle sizes that overlaps more than one flow patterns – non-Newtonian, pseudohomogeneous, heterogeneous and fully-stratified. A typical examples are residual products (“tailings”) from mining industry with normal average particle sizes of 20 to 100 μm or more. Experimental results of flows of complex slurries composing of non-Newtonian carrier fluid and three fractions of glass particles in 50 mm pipe are presented. Depending on the particle size, particles show different flow patterns and therefore considerable differences in pressure drops. Fine particles tend behave as a homogeneous matter, while coarser particles exhibit heterogeneous behaviour and even coarser particles form a sliding bed. A mathematical 3-component predictive model for turbulent flow of complex slurries is presented based on well-established semi-empirical formulae developed originally for flows with Newtonian carrier. The predicted values of pressure drops show very reasonable agreement with experimental results and indicate suitability of the model for engineering practice.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10503 - Water resources
Návaznosti výsledku
Projekt
—
Návaznosti
S - Specificky vyzkum na vysokych skolach
Ostatní
Rok uplatnění
2020
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Journal of Hydrology and Hydromechanics
ISSN
0042-790X
e-ISSN
1338-4333
Svazek periodika
68
Číslo periodika v rámci svazku
3
Stát vydavatele periodika
SK - Slovenská republika
Počet stran výsledku
8
Strana od-do
223-230
Kód UT WoS článku
000560031900002
EID výsledku v databázi Scopus
2-s2.0-85091335567