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3D modeling of acoustofluidics in a liquid-filled cavity including streaming, viscous boundary layers, surrounding solids, and a piezoelectric transducer

Department of Physics, Technical University of Denmark, DTU Physics Building 309, DK-2800 Kongens Lyngby, Denmark

Topical Section: Mathematical Analysis in Fluid Dynamics

We present a full 3D numerical simulation of the acoustic streaming observed in full-image micro-particle velocimetry by Hagsäter et al., Lab Chip 7, 1336 (2007) in a 2 mm by 2 mm by 0.2 mm microcavity embedded in a 49 mm by 15 mm by 2 mm chip excited by 2-MHz ultrasound. The model takes into account the piezo-electric transducer, the silicon base with the water-filled cavity, the viscous boundary layers in the water, and the Pyrex lid. The model predicts well the experimental results.
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Keywords microscale acoustofluidics; acoustic streaming; numerical simulation; 3D modeling

Citation: Nils R. Skov, Jacob S. Bach, Bjørn G. Winckelmann, Henrik Bruus. 3D modeling of acoustofluidics in a liquid-filled cavity including streaming, viscous boundary layers, surrounding solids, and a piezoelectric transducer. AIMS Mathematics, 2019, 4(1): 99-111. doi: 10.3934/Math.2019.1.99


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This article has been cited by

  • 1. Jacob S. Bach, Henrik Bruus, Bulk-driven acoustic streaming at resonance in closed microcavities, Physical Review E, 2019, 100, 2, 10.1103/PhysRevE.100.023104
  • 2. Nils R. Skov, Prateek Sehgal, Brian J. Kirby, Henrik Bruus, Three-Dimensional Numerical Modeling of Surface-Acoustic-Wave Devices: Acoustophoresis of Micro- and Nanoparticles Including Streaming, Physical Review Applied, 2019, 12, 4, 10.1103/PhysRevApplied.12.044028
  • 3. Jacob S. Bach, Henrik Bruus, Theory of acoustic trapping of microparticles in capillary tubes, Physical Review E, 2020, 101, 2, 10.1103/PhysRevE.101.023107
  • 4. William Naundrup Bodé, Lei Jiang, Thomas Laurell, Henrik Bruus, Microparticle Acoustophoresis in Aluminum-Based Acoustofluidic Devices with PDMS Covers, Micromachines, 2020, 11, 3, 292, 10.3390/mi11030292

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