2011 2(7)

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   Short abstract

 

Pages:

167 - 171

Language:

RU

Ref.:

6


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2011_2(7)_30.pdf

 

 

EXPERIMENTAL INVESTIGATION OF FLOW REGIMES AND MIXING PROCESSES IN A T-SHAPED MICROMIXER BY MEANS OF MICRO-PIV AND MICRO-LIF METHODS

Bilskiy A.V., Yagodnitsyna A.A.

Institute of Thermophysics SB RAS, Novosibirsk, Russia


Citation:

Bilskiy, A.V. and Yagodnitsyna, A.A., (2011) Experimental investigation of flow regimes and mixing processes in a T-shaped micromixer by means of micro-PIV and micro-LIF methods, Modern Science: Researches, Ideas, Results, Technologies, Iss. #2(7), PP. 167 - 171.


Keywords:

microflows; microhydrodynamics; micromixers


Abstracts:

In the present work flow regimes and mixing processes in a T-shaped micromixer with rectangular cross section channels were investigated. Using micro-PIV and micro-LIF experimental methods velocity and concentration fields were measured in the range of Reynolds numbers from 10 to 300. It was shown that at critical Reynolds number (Re = 150) flow regime changes from the Dean vortex flow to the engulfment flow. Obtained during the experiment critical Reynolds number coincides with CFD results by other authors. Concentration field analysis shows a drastic increase of mixing efficiency when “engulfment” flow regime occurs.


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