Micromixing effects in a couette flow reactor

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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Original languageEnglish
Pages (from-to)2883-2888
Journal / PublicationChemical Engineering Science
Issue number13-14
Publication statusPublished - Jul 1999
Externally publishedYes


TitleProceedings of the 1998 15th International Symposium on Chemical Reaction Engineering, ISCRE 15
CityNewport Beach, CA, USA
Period13 - 16 September 1998


This work quantitatively measures the micromixing efficiency in a Couette flow reactor on the basis of a unique parallel competing reaction scheme proposed by Villermaux and co-workers. According to those results, hydrodynamic instability markedly affects the segregation index. In laminar Couette flow (LCF) regime, increasing the rotational speed only slightly increases the micromixing efficiency. On the other hand, initiating the Taylor vortex motion significantly enhances the micromixing efficiency. In addition, the mixing times are estimated on the basis of an incorporation model. In LCF regime, the estimated micromixing time is unreasonably high. At the subsequently hydrodynamic transitions, t(m) substantially decreases and ultimately reaches a low level of 10-3-10-4 s in the turbulent vortex flow regime.

Research Area(s)

  • Couette flow, Hydrodynamic instability, Measurement, Micromixing, Mixing time, Segregation index

Bibliographic Note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to lbscholars@cityu.edu.hk.

Citation Format(s)

Micromixing effects in a couette flow reactor. / Liu, C. I.; Lee, D. J.
In: Chemical Engineering Science, Vol. 54, No. 13-14, 07.1999, p. 2883-2888.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review