LOCAL TURBULENT ENERGY DISSIPATION RATE IN A VESSEL AGITATED BY A RUSHTON TURBINE

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F15%3A00230588" target="_blank" >RIV/68407700:21220/15:00230588 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1515/cpe-2015-0011" target="_blank" >http://dx.doi.org/10.1515/cpe-2015-0011</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1515/cpe-2015-0011" target="_blank" >10.1515/cpe-2015-0011</a>

Jazyk výsledku

angličtina

Název v původním jazyce

LOCAL TURBULENT ENERGY DISSIPATION RATE IN A VESSEL AGITATED BY A RUSHTON TURBINE

Popis výsledku v původním jazyce

The scaling of turbulence characteristics such as turbulent fluctuation velocity, turbulent kinetic energy and turbulent energy dissipation rate was investigated in a mechanically agitated vessel 300 mm in inner diameter stirred by a Rushton turbine at high Reynolds numbers in the range 50 000 < Re < 100 000. The hydrodynamics and flow field was measured using 2-D TR PIV. The convective velocity formulas proposed by Antonia et al. (1980) and Van Doorn (1981) were tested. The turbulent energy dissipationrate estimated independently in both radial and axial directions using the one-dimensional approach was not found to be the same in each direction. Using the proposed correction, the values in both directions were found to be close to each other. The relation ?/(N3.D2) const. was not conclusively confirmed.

Název v anglickém jazyce

LOCAL TURBULENT ENERGY DISSIPATION RATE IN A VESSEL AGITATED BY A RUSHTON TURBINE

Popis výsledku anglicky

The scaling of turbulence characteristics such as turbulent fluctuation velocity, turbulent kinetic energy and turbulent energy dissipation rate was investigated in a mechanically agitated vessel 300 mm in inner diameter stirred by a Rushton turbine at high Reynolds numbers in the range 50 000 < Re < 100 000. The hydrodynamics and flow field was measured using 2-D TR PIV. The convective velocity formulas proposed by Antonia et al. (1980) and Van Doorn (1981) were tested. The turbulent energy dissipationrate estimated independently in both radial and axial directions using the one-dimensional approach was not found to be the same in each direction. Using the proposed correction, the values in both directions were found to be close to each other. The relation ?/(N3.D2) const. was not conclusively confirmed.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BK - Mechanika tekutin

OECD FORD obor

—

Projekt

<a href="/cs/project/GAP101%2F12%2F2274" target="_blank" >GAP101/12/2274: Lokální rychlost disipace turbulentní energie v míchaných reaktorech & bioreaktorech</a><br>

Návaznosti

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

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název periodika

Chemical and Process Engineering/Inzynieria chemiczna i procesowa

ISSN

0208-6425

e-ISSN

—

Svazek periodika

36

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

PL - Polská republika

Počet stran výsledku

15

Strana od-do

135-149

Kód UT WoS článku

000359000700002

EID výsledku v databázi Scopus

2-s2.0-84942113415