Acoustic Streaming and Its Suppression in Inhomogeneous Fluids

Physical Review Letters
Jonas T KarlsenH Bruus

Abstract

We present a theoretical and experimental study of boundary-driven acoustic streaming in an inhomogeneous fluid with variations in density and compressibility. In a homogeneous fluid this streaming results from dissipation in the boundary layers (Rayleigh streaming). We show that in an inhomogeneous fluid, an additional nondissipative force density acts on the fluid to stabilize particular inhomogeneity configurations, which markedly alters and even suppresses the streaming flows. Our theoretical and numerical analysis of the phenomenon is supported by ultrasound experiments performed with inhomogeneous aqueous iodixanol solutions in a glass-silicon microchip.

References

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Jul 24, 2015·Lab on a Chip·Rune BarnkobMassimiliano Rossi
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Nov 14, 2015·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Jonas T Karlsen, Henrik Bruus
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Jan 1, 2017·Microfluidics and Nanofluidics·Junjun LeiMartyn Hill

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Citations

Aug 10, 2019·Lab on a Chip·Ruhollah Habibi, Adrian Neild
Apr 23, 2019·Proceedings. Mathematical, Physical, and Engineering Sciences·G Michel, G P Chini
Oct 3, 2019·Physical Review. E·Jacob S Bach, Henrik Bruus
Jun 13, 2020·Physical Review Letters·Jacob S Bach, Henrik Bruus
Jul 10, 2021·The Journal of the Acoustical Society of America·Jonas Helboe Joergensen, Henrik Bruus

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