2009
DOI: 10.1016/j.cej.2009.07.060
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Oscillator micromixer

Abstract: a b s t r a c tA no-moving-part microfluidic oscillator was developed for mixing two reactants prior to their admission into a microreactor. Instead of the spatial periodicity produced by static mixers, it achieves essentially the same resultant effect by temporal periodicity. In one half of the oscillation period the oscillator directs into its output one reactant, followed by the other reactant during the other half-period. Since the periods are short, the flow in the output channel consists, like in the sta… Show more

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Cited by 28 publications
(10 citation statements)
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References 17 publications
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“…Most of these studies has been carried out for the potential applications of delaying flow separation over an aerodynamic body in where synthetic jets are ejected through a slot or an array of circular orifices upstream of a separated flow (Shuster and Smith, 2007;Tang et al, 2007;Zhong et al, 2007;Watson et al, 2007;Jabbal and Zhong, 2008;Tesař, 2009;Zhang and Zhong, 2010). In more recent years, there has been an increased interest in surface cooling using impinging synthetic jets (Travaicek and Tesar, 2003;Pavlova and Amitay, 2006;Li et al, 2009;Chaudhari et al, 2010).…”
Section: Introductionmentioning
confidence: 97%
See 1 more Smart Citation
“…Most of these studies has been carried out for the potential applications of delaying flow separation over an aerodynamic body in where synthetic jets are ejected through a slot or an array of circular orifices upstream of a separated flow (Shuster and Smith, 2007;Tang et al, 2007;Zhong et al, 2007;Watson et al, 2007;Jabbal and Zhong, 2008;Tesař, 2009;Zhang and Zhong, 2010). In more recent years, there has been an increased interest in surface cooling using impinging synthetic jets (Travaicek and Tesar, 2003;Pavlova and Amitay, 2006;Li et al, 2009;Chaudhari et al, 2010).…”
Section: Introductionmentioning
confidence: 97%
“…In addition, the strength of synthetic jets can be varied independently from that of the main flow such that the mixing can be effective in low Reynolds number flows where turbulence is absent. Although there have been some preliminary studies of mixing enhanced by lateral synthetic jets at low Reynolds numbers (Mautner, 2004;Tesař, 2009), detailed experimental investigations aiming at understanding the flow physics involved are still lacking. Such an improved understanding will be beneficial for designing more effective devices for mixing in many applications, such as inline flow mixers for viscous fluids and bi-sensors where the level of mixing is suppressed by their inherent low Reynolds numbers.…”
Section: Introductionmentioning
confidence: 99%
“…The fluidic version is rarely used and in fact little known. details of the processes taking place in the interaction space were instead investigated with the intention of using the device in small-scale, microfluidic mixers [6]. Visualisations of the flowfield (with interesting procedure of posterisation of images -drastic reduction of the colour scale) have actually led to identification of the fact that the jets turn back, following what is in effect a feedback loop path.…”
Section: Less Known Feedbacksmentioning
confidence: 99%
“…Its typical feature is the presence of feedback loop channels. The most popular feedback configuration is the Warren's circuit [9,14,15] with two loop channels. The feedback action they generate is obvious.…”
Section: Oscillators With a Bistable Amplifier: Versions A And Bmentioning
confidence: 99%