ArticleJournal of fluid mechanics2017
Acoustic streaming: an arbitrary Lagrangian-Eulerian perspective.
Article in Journal of fluid mechanics, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- Capillary wave tweezer.Scientific reports · 2024Article
- Evaluation of advective solute infiltration into porous media by pulsed focused ultrasound-induced acoustic streaming effects.Ultrasonography (Seoul, Korea) · 2024Article
- Sonoporation: Past, Present, and Future.Advanced materials technologies · 2022Article
- Functional hyperemia drives fluid exchange in the paravascular space.Fluids and barriers of the CNS · 2020Article
- Modeling and Analysis of the Two-Dimensional Axisymmetric Acoustofluidic Fields in the Probe-Type and Substrate-Type Ultrasonic Micro/Nano Manipulation Systems.Micromachines · 2019Article
- Numerical and Experimental Analyses of Three- Dimensional Unsteady Flow around a Micro-Pillar Subjected to Rotational Vibration.Micromachines · 2018Article
- Comparing methods for the modelling of boundary-driven streaming in acoustofluidic devices.Microfluidics and nanofluidics · 2017Article
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Authors and funding
3 authors.
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Abstract
We analyse acoustic streaming flows using an arbitrary Lagrangian Eulerian (ALE) perspective. The formulation stems from an explicit separation of time scales resulting in two subproblems: a first-order problem, formulated in terms of the fluid displacement at the fast scale, and a second-order problem, formulated in terms of the Lagrangian flow velocity at the slow time scale. Following a rigorous time-averaging procedure, the second-order problem is shown to be intrinsically steady, and with exact boundary conditions at the oscillating walls. Also, as the second-order problem is solved directly for the Lagrangian velocity, the formulation does not need to employ the notion of Stokes drift, or any associated post-processing, thus facilitating a direct comparison with experiments. Because the first-order problem is formulated in terms of the displacement field, our formulation is directly applicable to more complex fluid-structure interaction problems in microacoustofluidic devices. After the formulation's exposition, we present numerical results that illustrate the advantages of the formulation with respect to current approaches.
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