Friction factor of shear thinning fluids in non-circular ducts-a simplified approach for rapid engineering calculation
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F21%3A00343251" target="_blank" >RIV/68407700:21220/21:00343251 - isvavai.cz</a>
Výsledek na webu
<a href="https://doi.org/10.1080/00986445.2020.1770232" target="_blank" >https://doi.org/10.1080/00986445.2020.1770232</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1080/00986445.2020.1770232" target="_blank" >10.1080/00986445.2020.1770232</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Friction factor of shear thinning fluids in non-circular ducts-a simplified approach for rapid engineering calculation
Popis výsledku v původním jazyce
This work reports on an investigation of the relationship between the Reynolds number and the friction factor of the fully developed laminar flow of power-law fluids through non-circular cross-sections (elliptical, concentric annuli, symmetrical L-shape, isosceles triangle, eccentric annuli, and square duct with a central cylindrical core), with the aim of providing a simple method for rapid and simplified engineering calculations. The friction factor-Reynolds number relation has been derived for non-circular ducts on the basis of the modified Reynolds number proposed by Metzner and Reed. It has been shown that the proposed correlation enables a prediction of the friction factor for the fully developed laminar flow of shear thinning fluids in non-circular cross-sections by using a calculation method similar to the method used for laminar flow of a Newtonian fluid. The correlation that is provided has been validated by analytical and numerical methods. It has been found that the proposed method can be used to determine the friction factor with high accuracy. This method yields a friction factor with a deviation of less than 5% in comparison with the conventional method.
Název v anglickém jazyce
Friction factor of shear thinning fluids in non-circular ducts-a simplified approach for rapid engineering calculation
Popis výsledku anglicky
This work reports on an investigation of the relationship between the Reynolds number and the friction factor of the fully developed laminar flow of power-law fluids through non-circular cross-sections (elliptical, concentric annuli, symmetrical L-shape, isosceles triangle, eccentric annuli, and square duct with a central cylindrical core), with the aim of providing a simple method for rapid and simplified engineering calculations. The friction factor-Reynolds number relation has been derived for non-circular ducts on the basis of the modified Reynolds number proposed by Metzner and Reed. It has been shown that the proposed correlation enables a prediction of the friction factor for the fully developed laminar flow of shear thinning fluids in non-circular cross-sections by using a calculation method similar to the method used for laminar flow of a Newtonian fluid. The correlation that is provided has been validated by analytical and numerical methods. It has been found that the proposed method can be used to determine the friction factor with high accuracy. This method yields a friction factor with a deviation of less than 5% in comparison with the conventional method.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
20402 - Chemical process engineering
Návaznosti výsledku
Projekt
—
Návaznosti
S - Specificky vyzkum na vysokych skolach
Ostatní
Rok uplatnění
2021
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
CHEMICAL ENGINEERING COMMUNICATIONS
ISSN
0098-6445
e-ISSN
1563-5201
Svazek periodika
208
Číslo periodika v rámci svazku
8
Stát vydavatele periodika
NL - Nizozemsko
Počet stran výsledku
9
Strana od-do
1209-1217
Kód UT WoS článku
000541292000001
EID výsledku v databázi Scopus
2-s2.0-85086323661