Mixing in a T-shaped micromixer at moderate Reynolds numbers

Тип публикации: статья из журнала

Год издания: 2012

Идентификатор DOI: 10.1134/S0869864312030043

Ключевые слова: microchannels, micromixers, mixing efficiency, hydrodynamic modelling, slip on walls, Dean vortices, Dean vortices, hydrodynamic modelling, microchannels, micromixers, mixing efficiency, slip on walls, Dean vortex, Hydrodynamic modelling, Micromixers, Mixing efficiency, slip on walls, Efficiency, Microchannels, Mixers (machinery), Reynolds number, Mixing

Аннотация: In the present work, the regimes of the flow and mixing of fluids in a T-shaped micromixer in the range of the Reynolds numbers from 1 to 1000 are investigated systematically with the aid of numerical modeling. The flow and mixing regimes are shown to alter substantially with increasing Reynolds numbers. Five different flow regimes have been identified in the total. The dependencies of the friction coefficient and mixing efficiency on the Reynolds number are obtained. A sharp increase in the mixing efficiency at a flow transition from the symmetric to asymmetric steady regime is shown. On the other hand, the mixing efficiency slightly drops in the laminar-turbulent transition region. A substantial influence of the slip presence on walls on flow structure in the channel and mixing efficiency has been revealed.

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Издание

Журнал: THERMOPHYSICS AND AEROMECHANICS

Выпуск журнала: Vol. 19, Is. 3

Номера страниц: 385-395

ISSN журнала: 08698643

Место издания: NEW YORK

Издатель: MAIK NAUKA/INTERPERIODICA/SPRINGER

Авторы

  • Minakov A.V. (Siberian Federal University)
  • Rudyak V.Y. (Novosibirsk State University of Architecture and Civil Engineering)
  • Gavrilov A.A. (Siberian Federal University)
  • Dekterev A.A. (Siberian Federal University)

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