Numerical and experimental prediction of free surface flow of shear-thinning fluids

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23520%2F21%3A43962248" target="_blank" >RIV/49777513:23520/21:43962248 - isvavai.cz</a>

Výsledek na webu

<a href="https://reader.elsevier.com/reader/sd/pii/S0045793021001365?token=387A23634304BEDEF4E93C74CB4439A8C84CCF0E697F4D5D329795D08A8140388EF6F99AE551535DA69CE6A2ED343FA1&originRegion=eu-west-1&originCreation=20210824085534" target="_blank" >https://reader.elsevier.com/reader/sd/pii/S0045793021001365?token=387A23634304BEDEF4E93C74CB4439A8C84CCF0E697F4D5D329795D08A8140388EF6F99AE551535DA69CE6A2ED343FA1&originRegion=eu-west-1&originCreation=20210824085534</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.compfluid.2021.104969" target="_blank" >10.1016/j.compfluid.2021.104969</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Numerical and experimental prediction of free surface flow of shear-thinning fluids

Popis výsledku v původním jazyce

Within this study, a prediction of free surface flow during the gravity casting of shear-thinning fluids is of interest. An experimental test setup which enables analysis of the casting flow by means of opti- cal measurements is designed and an in-house computational fluid dynamics solver based on the lattice Boltzmann method is implemented. The model of isothermal free surface flow of non-Newtonian incom- pressible fluid is considered. In particular, the study focuses on liquids which rheological properties can be idealised by the power-law model and its modifications. Parameters of the non-Newtonian models are identified based on the rheological measurements of the applied fluid samples. The gravity casting flow is examined both experimentally and numerically, while the experiments provide a reference set of data for validation of the implemented lattice Boltzmann algorithm. The computational results indicate that the algorithm is capable of resolving well the studied flow for computational grids with low spatial resolution.

Název v anglickém jazyce

Numerical and experimental prediction of free surface flow of shear-thinning fluids

Popis výsledku anglicky

Within this study, a prediction of free surface flow during the gravity casting of shear-thinning fluids is of interest. An experimental test setup which enables analysis of the casting flow by means of opti- cal measurements is designed and an in-house computational fluid dynamics solver based on the lattice Boltzmann method is implemented. The model of isothermal free surface flow of non-Newtonian incom- pressible fluid is considered. In particular, the study focuses on liquids which rheological properties can be idealised by the power-law model and its modifications. Parameters of the non-Newtonian models are identified based on the rheological measurements of the applied fluid samples. The gravity casting flow is examined both experimentally and numerically, while the experiments provide a reference set of data for validation of the implemented lattice Boltzmann algorithm. The computational results indicate that the algorithm is capable of resolving well the studied flow for computational grids with low spatial resolution.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20302 - Applied mechanics

Projekt

<a href="/cs/project/GA18-25734S" target="_blank" >GA18-25734S: Experimentální a výpočtové modelování proudění nenewtonských kapalin s dispergovanými částicemi a volnou hladinou</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

COMPUTERS &amp; FLUIDS

ISSN

0045-7930

e-ISSN

—

Svazek periodika

225

Číslo periodika v rámci svazku

15 July 2021

Stát vydavatele periodika

FR - Francouzská republika

Počet stran výsledku

11

Strana od-do

1-11

Kód UT WoS článku

000658895000002

EID výsledku v databázi Scopus

2-s2.0-85105588986