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22 March 2021 Oscillatory microchannel two-phase flow in direct-contact ultrasonic drying
Zhaokuan Lu, Eric Dupuis, Viral Patel, Ayyoub Momen, Shima Shahab
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Proceedings Volume 11588, Active and Passive Smart Structures and Integrated Systems XV; 115880Y (2021) https://doi.org/10.1117/12.2581994
Event: SPIE Smart Structures + Nondestructive Evaluation, 2021, Online Only
Abstract
Flow in microchannels differs substantially from the flow in the macroscopic scale. Despite numerous works on two-phase flow and oscillatory single-phase flow in microchannels, oscillatory two-phase flow has not been thoroughly investigated. One of the situations where this type of flow occurs is in the ultrasonic drying device recently pioneered by Oak Ridge National Laboratory. An ultrasonic oscillatory piezoelectric transducer with microchannels is designed to dry the fabric by atomization and draining the water through the microchannel outlet. In this work, computational fluid dynamics is utilized to investigate the air-water two-phase flow driven by the ultrasonic vibrating microchannel. Our results indicate the importance of microchannel geometry and vibration conditions on drying efficiency.
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Zhaokuan Lu, Eric Dupuis, Viral Patel, Ayyoub Momen, and Shima Shahab "Oscillatory microchannel two-phase flow in direct-contact ultrasonic drying", Proc. SPIE 11588, Active and Passive Smart Structures and Integrated Systems XV, 115880Y (22 March 2021); https://doi.org/10.1117/12.2581994
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KEYWORDS
Ultrasonics
Transducers
Computational fluid dynamics
Microfluidics
Modeling and simulation
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