CFDsimulations and experimental validation of homogenisation curves and mixing time in stirred Newtonian and pseudoplastic liquids

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F05%3A00014523" target="_blank" >RIV/60461373:22340/05:00014523 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

CFDsimulations and experimental validation of homogenisation curves and mixing time in stirred Newtonian and pseudoplastic liquids

Original language description

The aim of this work is to identify a proper Computational Fluid Dynamics (CFD) simulation strategy for the calculation of mixing time in stirred tanks for fluids characterised by either Newtonian or non-Newtonian rheological behaviour. Two different bafled tanks are considered, both stirred with multiple down-pumping 45. pitched blade turbines (PBT): a small one for extensive, preliminary simulations conducted with water and aimed at determining a generic procedure suitable with low-viscosity, Newtonian liquids; and a bigger one for testing the results with moderately viscous liquids and non-Newtonian fluids. The influence on the predicted mixing time of the tracer injection position, turbulence modelling and numerical parameters is investigated. Theresults of the simulations are compared with original experimental data and good agreement is obtained in all cases, once the proper mathematical models, solution procedure and relevant parameters are established.

Czech name

CFD simulace a exprimentální ověření průběhu homogenizace v newtonských a pseudoplastických kapalinách

Czech description

Cílem prezentované práce je srovnání výsledků doby homogenizace v mechanicky míchaných nádobách získané CFD simulacemi s experimentálními. Byly užívány různé vsádky s odlišnými reologickými vlastnostmi. Byly dosaženo dobré shody. Dále byly získány hodnoty parametrů užitých turbulentních modelů.

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

CI - Industrial chemistry and chemical engineering

OECD FORD branch

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Project

<a href="/en/project/GD104%2F03%2FH141" target="_blank" >GD104/03/H141: Reaction and transport phenomena in complex homogeneous and heterogeneous systems</a><br>

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2005

Confidentiality

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

Name of the periodical

Chemical Engineering Science

ISSN

0009-2509

e-ISSN

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Volume of the periodical

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Issue of the periodical within the volume

8

Country of publishing house

GB - UNITED KINGDOM

Number of pages

10

Pages from-to

2427-2437

UT code for WoS article

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EID of the result in the Scopus database

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