Acoustic resonance and atomization for gas-liquid systems in microreactors
| Autor: | Keiran Mc Carogher, Simon Kuhn, Robert Mettin, Zhengya Dong, Dwayne Savio Stephens, M. Enis Leblebici |
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| Přispěvatelé: | Mc Carogher, K, Mettin, R, Dong, ZY, Kuhn, S, Stephens, DS, LEBLEBICI, Mumin enis |
| Jazyk: | angličtina |
| Předmět: |
Materials science
Acoustics and Ultrasonics Flow (psychology) Acoustic resonance QC221-246 02 engineering and technology 010402 general chemistry 01 natural sciences Gas phase Inorganic Chemistry Physics::Fluid Dynamics Resonator Mass transfer Chemical Engineering (miscellaneous) Environmental Chemistry Radiology Nuclear Medicine and imaging Original Research Article QD1-999 Computer simulation Organic Chemistry Acoustics. Sound Mechanics 021001 nanoscience & nanotechnology Microreactors Gas-liquid Taylor flow 0104 chemical sciences Atomization Condensed Matter::Soft Condensed Matter Gas-liquid mass transfer Chemistry Microreactor 0210 nano-technology |
| Zdroj: | Ultrasonics Sonochemistry Ultrasonics Sonochemistry, Vol 75, Iss, Pp 105611-(2021) |
| ISSN: | 1350-4177 |
| DOI: | 10.1016/j.ultsonch.2021.105611 |
| Popis: | Highlights • Acoustic resonance within a liquid slug in gas–liquid Taylor flow was demonstrated. • Intense atomization was observed with slug resonance. • Visual evidence of the cavitation-wave hypothesis was provided. It is shown that a liquid slug in gas–liquid segmented flow in microchannels can act as an acoustic resonator to disperse large amounts of small liquid droplets, commonly referred to as atomization, into the gas phase. We investigate the principles of acoustic resonance within a liquid slug through experimental analysis and numerical simulation. A mechanism of atomization in the confined channels and a hypothesis based on high-speed image analysis that links acoustic resonance within a liquid slug with the observed atomization is proposed. The observed phenomenon provides a novel source of confined micro sprays and could be an avenue, amongst others, to overcome mass transfer limitations for gas–liquid processes in flow. |
| Databáze: | OpenAIRE |
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