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

J. J. Derksen; M. S. Doelman; H. E.A. Van Den Akker

doi:10.1007/s003480050376

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

J. J. Derksen
, M. S. Doelman
, H. E.A. Van Den Akker

Delft University of Technology

Research output: Contribution to journal › Article › peer-review

Abstract

Three-dimensional, angle-resolved LDA measurements of the turbulent flow field (Re = 2.9×10⁴) in the vicinity of a Rushton turbine in a baffled mixing tank have been performed. For this goal, a procedure for accurate beam alignment, based on a submerged micro-mirror system, has been developed. Results on the average flow field as well as on the complete set of Reynolds stresses are presented. The anisotropy of the turbulence has been characterized by the invariants of the anisotropy tensor. The trailing vortex structure, which is characteristic for the flow induced by a Rushton turbine, is demonstrated to be associated with strong, anisotropic turbulent activity.

Original language	English
Pages (from-to)	522-532
Number of pages	11
Journal	Experiments in Fluids
Volume	27
Issue number	6
DOIs	https://doi.org/10.1007/s003480050376
Publication status	Published - 1999
Externally published	Yes

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title = "Three-dimensional LDA measurements in the impeller region of a turbulently stirred tank",

abstract = "Three-dimensional, angle-resolved LDA measurements of the turbulent flow field (Re = 2.9×104) in the vicinity of a Rushton turbine in a baffled mixing tank have been performed. For this goal, a procedure for accurate beam alignment, based on a submerged micro-mirror system, has been developed. Results on the average flow field as well as on the complete set of Reynolds stresses are presented. The anisotropy of the turbulence has been characterized by the invariants of the anisotropy tensor. The trailing vortex structure, which is characteristic for the flow induced by a Rushton turbine, is demonstrated to be associated with strong, anisotropic turbulent activity.",

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journal = "Experiments in Fluids",

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T1 - Three-dimensional LDA measurements in the impeller region of a turbulently stirred tank

AU - Derksen, J. J.

AU - Doelman, M. S.

AU - Van Den Akker, H. E.A.

PY - 1999

Y1 - 1999

N2 - Three-dimensional, angle-resolved LDA measurements of the turbulent flow field (Re = 2.9×104) in the vicinity of a Rushton turbine in a baffled mixing tank have been performed. For this goal, a procedure for accurate beam alignment, based on a submerged micro-mirror system, has been developed. Results on the average flow field as well as on the complete set of Reynolds stresses are presented. The anisotropy of the turbulence has been characterized by the invariants of the anisotropy tensor. The trailing vortex structure, which is characteristic for the flow induced by a Rushton turbine, is demonstrated to be associated with strong, anisotropic turbulent activity.

AB - Three-dimensional, angle-resolved LDA measurements of the turbulent flow field (Re = 2.9×104) in the vicinity of a Rushton turbine in a baffled mixing tank have been performed. For this goal, a procedure for accurate beam alignment, based on a submerged micro-mirror system, has been developed. Results on the average flow field as well as on the complete set of Reynolds stresses are presented. The anisotropy of the turbulence has been characterized by the invariants of the anisotropy tensor. The trailing vortex structure, which is characteristic for the flow induced by a Rushton turbine, is demonstrated to be associated with strong, anisotropic turbulent activity.

UR - https://www.scopus.com/pages/publications/0033328467

U2 - 10.1007/s003480050376

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JO - Experiments in Fluids

JF - Experiments in Fluids

IS - 6

ER -

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

Abstract

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