Estimation of turbulence dissipation rate by Large eddy PIV method in an agitated vessel

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985874%3A_____%2F15%3A00447384" target="_blank" >RIV/67985874:_____/15:00447384 - isvavai.cz</a>

Alternative codes found

RIV/68407700:21220/15:00230589

Result on the web

<a href="http://dx.doi.org/10.1051/epjconf/20159202045" target="_blank" >http://dx.doi.org/10.1051/epjconf/20159202045</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1051/epjconf/20159202045" target="_blank" >10.1051/epjconf/20159202045</a>

Result language

angličtina

Original language name

Estimation of turbulence dissipation rate by Large eddy PIV method in an agitated vessel

Original language description

The distribution of turbulent kinetic energy dissipation rate is important for design of mixing apparatuses in chemical industry. Generally used experimental methods of velocity measurements for measurement in complex geometries of an agitated vessel disallow measurement in resolution of small scales close to turbulence dissipation ones. Therefore, Particle image velocity (PIV) measurement method improved by large eddy PIV approach was used. Large eddy PIV method is based on modeling of smallest eddies by a sub grid scale (SGS) model. This method is similar to numerical calculations using Large Eddy Simulation (LES) and the same SGS models are used. In this work the basic Smagorinsky model was employed and compared with power law approximation. Time resolved PIV data were processed by Large Eddy PIV approach and the obtained results of turbulent kinetic dissipation rate were compared in selected points for several operating conditions (impeller speed, operating liquid viscosity).

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

JP - Industrial processes and processing

OECD FORD branch

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Project

<a href="/en/project/GAP101%2F12%2F2274" target="_blank" >GAP101/12/2274: Local rate of turbulent energy dissipation in agitated reactors & bioreactors</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2015

Confidentiality

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

Article name in the collection

EPJ Web of Conferences

ISBN

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ISSN

2101-6275

e-ISSN

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Number of pages

5

Pages from-to

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Publisher name

EDP Sciences

Place of publication

Les Ulis

Event location

Český Krumlov

Event date

Nov 18, 2014

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

000358249900047