Three-dimensional LDA measurements in the impeller region of a turbulently stirred tank

Derksen, J. J.; Doelman, M. S.; Akker, H.E.A. van den

doi:10.1007/s003480050376

Cited by 89 publications

(59 citation statements)

References 14 publications

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“…(Derksen et al, 1999;Ranade et al, 2001). Hence, the region under the impeller seems to be useful for comparisons of turbulence flow changes dependent on operating conditions.…”

Section: Velocities Under the Rushton Turbine (Results Of Piv Measurementioning

confidence: 99%

Study of the Turbulent Flow Structure around a Standard Rushton Impeller

Kysela¹,

Konfršt²,

Fořt³

et al. 2014

Chemical and Process Engineering

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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.

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“…(Derksen et al, 1999;Ranade et al, 2001). Hence, the region under the impeller seems to be useful for comparisons of turbulence flow changes dependent on operating conditions.…”

Section: Velocities Under the Rushton Turbine (Results Of Piv Measurementioning

confidence: 99%

Study of the Turbulent Flow Structure around a Standard Rushton Impeller

Kysela¹,

Konfršt²,

Fořt³

et al. 2014

Chemical and Process Engineering

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show abstract

“…3). According to Derksen et al [9,10] a proper grid for stirred tanks modeling should be able to resolve the trailing vortex behind the impeller blade. They recommended using at least 8 nodes along the impeller height (corresponding to 0.025 D) to resolve the trailing vortex for RANS modeling.…”

Section: Computational Approachmentioning

confidence: 99%

“…Derksen et al [10] and Schafer et al [25] characterized the vortex size considering a non-dimensional vorticity defined as…”

Section: Introductionmentioning

confidence: 99%

Study of fluid flow in baffled vessels stirred by a Rushton standard impeller

Chára

Kysela

Konfršt

et al. 2016

Applied Mathematics and Computation

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“…Some investigators (Yianneskis et al, 1987;Stoots and Calabrese (1995); Derksen et al, 1999) have reported the structure of the trailing vortices generated by a single Rushton impeller with an analysis of angle-resolved laser-Doppler velocimetry (LDV).…”

Section: Introductionmentioning

confidence: 99%