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Numerical and Experimental Investigation ofFluidicMicrodrops Manipulation by FluidicMono-Stable Oscillator

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International Journal of Fluid Mechanics Research

Volume 43, Issue 1, 2016, Pages 50-61

Numerical and Experimental Investigation of FluidicMicrodrops Manipulation by Fluidic

Mono-Stable Oscillator

T. CHEKIFI, B. dennai, R. Khelfaoui, A. Maazouzi

Abstract: A numerical and experimental study of passive microdrops manipulation hasbeen presented. This paper focuses on the modeling of micro-oscillators systemswhich are composed by passive amplifier without moving part. The characteristicsize of the channels is generally about 35 ¹mof depth. The numerical results indicatethat the production and manipulation of microdrops are possible with passivedevice within a typical oscillators chamber of 2:25 mm diameter and 0:20 mmlength when the Reynolds number is Re = 490. The novel microdrops methodthat is presented in this study provides a simple solution about the production ofmicrodrops problems in micro system. We undertake an experimental step. Thefirst part is based on realization of sample oscillator; the second part is consistedof visualization of the microdrops production and its manipulation.

Keywords : microdrop, fluidic oscillator, CFD

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