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Mixing in a Taylor–Couette reactor in the non-wavy flow regime

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Title: Mixing in a Taylor–Couette reactor in the non-wavy flow regime
Authors: Dusting, Jonathan Jonathan.Dusting@kcl.ac.uk, Balabani, Stavroula1 Stavroula.Balabani@kcl.ac.uk
Source: Chemical Engineering Science. Jul2009, Vol. 64 Issue 13, p3103-3111. 9p.
Subjects: Taylor vortices, Chemical reactors, Vortex motion, Wave mechanics, Boundary layer (Aerodynamics), Bioreactors, Fluorescence
Abstract: Abstract: The mixing in a Taylor–Couette flow cell is quantified with laser induced fluorescence (LIF). Time-resolved, two-dimensional measurements of dye concentration have been obtained in the non-wavy Taylor vortex flow regime and analysed in order to characterise the intervortex and intravortex mixing. The results show clear evidence of intervortex mixing especially near the inner wall region and the inflow boundaries, and demonstrate that Taylor vortex flow cannot be simply assumed as a series of well mixed tanks. Intravortex mixing is slow in relation to the mixing between adjacent vortices and is more rapid in the azimuthal direction than the meridional plane. Increasing Re towards the upper limit of the Taylor vortex flow regime results in enhanced mixing despite the apparent absence of an azimuthal wave. Both the intervortex and intravortex mixing times reduce substantially and the intravortex mixing in the azimuthal and meridional planes occur at similar timescales. [Copyright &y& Elsevier]
Copyright of Chemical Engineering Science is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 40116290
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PubType: Academic Journal
PubTypeId: academicJournal
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  Data: Mixing in a Taylor–Couette reactor in the non-wavy flow regime
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  Data: <searchLink fieldCode="AR" term="%22Dusting%2C+Jonathan%22">Dusting, Jonathan</searchLink><i> Jonathan.Dusting@kcl.ac.uk</i><br /><searchLink fieldCode="AR" term="%22Balabani%2C+Stavroula%22">Balabani, Stavroula</searchLink><relatesTo>1</relatesTo><i> Stavroula.Balabani@kcl.ac.uk</i>
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  Data: <searchLink fieldCode="JN" term="%22Chemical+Engineering+Science%22">Chemical Engineering Science</searchLink>. Jul2009, Vol. 64 Issue 13, p3103-3111. 9p.
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  Data: <searchLink fieldCode="DE" term="%22Taylor+vortices%22">Taylor vortices</searchLink><br /><searchLink fieldCode="DE" term="%22Chemical+reactors%22">Chemical reactors</searchLink><br /><searchLink fieldCode="DE" term="%22Vortex+motion%22">Vortex motion</searchLink><br /><searchLink fieldCode="DE" term="%22Wave+mechanics%22">Wave mechanics</searchLink><br /><searchLink fieldCode="DE" term="%22Boundary+layer+%28Aerodynamics%29%22">Boundary layer (Aerodynamics)</searchLink><br /><searchLink fieldCode="DE" term="%22Bioreactors%22">Bioreactors</searchLink><br /><searchLink fieldCode="DE" term="%22Fluorescence%22">Fluorescence</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Abstract: The mixing in a Taylor–Couette flow cell is quantified with laser induced fluorescence (LIF). Time-resolved, two-dimensional measurements of dye concentration have been obtained in the non-wavy Taylor vortex flow regime and analysed in order to characterise the intervortex and intravortex mixing. The results show clear evidence of intervortex mixing especially near the inner wall region and the inflow boundaries, and demonstrate that Taylor vortex flow cannot be simply assumed as a series of well mixed tanks. Intravortex mixing is slow in relation to the mixing between adjacent vortices and is more rapid in the azimuthal direction than the meridional plane. Increasing Re towards the upper limit of the Taylor vortex flow regime results in enhanced mixing despite the apparent absence of an azimuthal wave. Both the intervortex and intravortex mixing times reduce substantially and the intravortex mixing in the azimuthal and meridional planes occur at similar timescales. [Copyright &y& Elsevier]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Chemical Engineering Science is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1016/j.ces.2009.03.046
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      – Code: eng
        Text: English
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        PageCount: 9
        StartPage: 3103
    Subjects:
      – SubjectFull: Taylor vortices
        Type: general
      – SubjectFull: Chemical reactors
        Type: general
      – SubjectFull: Vortex motion
        Type: general
      – SubjectFull: Wave mechanics
        Type: general
      – SubjectFull: Boundary layer (Aerodynamics)
        Type: general
      – SubjectFull: Bioreactors
        Type: general
      – SubjectFull: Fluorescence
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      – TitleFull: Mixing in a Taylor–Couette reactor in the non-wavy flow regime
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              Text: Jul2009
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              Y: 2009
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