Study of the Turbulent Flow Structure around a Standard Rushton Impeller

• Authors: Bohuš Kysela , Jiří Konfršt , Ivan Fořt , Michal Kotek , Zdeněk Chára
• Languages of publication: EN

Abstracts

EN

The velocity field around the standard Rushton turbine was investigated by the Laser Doppler Anemometry (LDA) and Particle Image Velocimetry (PIV) measurements. The mean ensembleaveraged velocity profiles and root mean square values of fluctuations were evaluated at two different regions. The first one was in the discharge stream in the radial direction from the impeller where the radial flow is dominant and it is commonly modelled as a swirling turbulent jet. The validity range of the turbulent jet model was studied. The second evaluated region is under the impeller where flow seems to be at first sight rather rigorous but obtained results show nonnegligible values of fluctuation velocity.

Keywords

EN

Rushton turbine; mixing; ensemble-average mean velocity; fluctuation velocity LDA/LDV; PIV; velocity profiles

• Publisher: De Gruyter Open
• Journal: Chemical and Process Engineering
• Year: 2014
• Volume: 35
• Issue: 1
• Pages: 137-147

Dates

published

1 - 3 - 2014

accepted

17 - 2 - 2014

received

23 - 6 - 2013

online

25 - 4 - 2014

Contributors

author

Bohuš Kysela

• Institute of Hydrodynamics AS CR, v. v. i., Pod Patankou 30/5, Prague, Czech Republic

author

Jiří Konfršt

• Institute of Hydrodynamics AS CR, v. v. i., Pod Patankou 30/5, Prague, Czech Republic

author

Ivan Fořt

• Czech Technical University in Prague, Faculty of Mechanical Engineering, Department of Process Engineering, Technicka 4, Prague, Czech Republic

author

Michal Kotek

• Technical University of Liberec, Institute for Nanomaterials, Advanced Technology and Innovation, Studentska 1402/2, Liberec, Czech Republic

author

Zdeněk Chára

• Institute of Hydrodynamics AS CR, v. v. i., Pod Patankou 30/5, Prague, Czech Republic

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Identifiers

DOI

10.2478/cpe-2014-0010