Study of fluid flow in micromixer with symmetrical and asymmetrical inlet conditions

Тип публикации: статья из журнала

Год издания: 2013

Идентификатор DOI: 10.1051/lhb/2013038

Ключевые слова: Microflow, Micromixers, Microchannels, T-shaped, CFD, Micro-PIV, Micro-LIF, CFD, Micro-LIF, Micro-PIV, Microchannels, Microflow, Micromixers, T-shaped, Micro PIV, Micro-flow, Micro-LIF, Micromixers, T-shaped, Computational fluid dynamics, Electroosmosis, Intake systems, Microchannels, Mixers (machinery), Mixing, Navier Stokes equations, Reynolds number, Velocity measurement, Vortex flow, computational fluid dynamics, fluid flow, mixing, Navier-Stokes equations, numerical model, Reynolds number, symmetry

Аннотация: Flow regimes and mixing pattern in a T-type micromixer at high Reynolds numbers were studied by numerical solution of the Navier-Stokes equations and by micro-PIV and micro-LIP experimental measurement. The Reynolds number was varied from one to one thousand. The cross section of the mixing channel was 200 mu mx400 mu m and its length was 3000 mu m. Five different flow regimes were identified: (i) stationary vortex-free flow (Re 400). Maximum mixing efficiency was obtained for stationary asymmetric vortex flow. In this case, an S-shaped vortex structure formed in the flow field. Also the numerical investigation of flow and mixing in the T-shaped micromixer with asymmetrical inlet conditions for different Reynolds numbers was carried out. The good agreement between calculation and experiment was obtained as a result.

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Издание

Журнал: HOUILLE BLANCHE-REVUE INTERNATIONALE DE L EAU

Выпуск журнала: Is. 5

Номера страниц: 12-21

ISSN журнала: 00186368

Место издания: LES ULIS CEDEX A

Издатель: EDP SCIENCES S A

Авторы

  • Minakov A. (Siberian Federal University)
  • Yagodnitsyna A. (Institute of Thermophysics,SB,RAS)
  • Lobasov A. (Siberian Federal University)
  • Rudyak V. (Novosibirsk State University of Civil Engineering)
  • Bilsky A. (Institute of Thermophysics,SB,RAS)

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