Preprint article ยท Journal article
Suppression of Acoustic Streaming in Shape-Optimized Channels
Acoustic streaming is an ubiquitous phenomenon resulting from time-averaged nonlinear dynamics in oscillating fluids. In this theoretical study, we show that acoustic streaming can be suppressed by two orders of magnitude in major regions of a fluid by optimizing the shape of its confining walls. Remarkably, the acoustic pressure is not suppressed in this shape-optimized cavity, and neither is the acoustic radiation force on suspended particles.
This basic insight may lead to applications, such as acoustophoretic handling of nm-sized particles, which is otherwise impaired by the streaming.
Language: | English |
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Year: | 2020 |
Pages: | 214501 |
ISSN: | 10797114 and 00319007 |
Types: | Preprint article and Journal article |
DOI: | 10.1103/PhysRevLett.124.214501 |
ORCIDs: | Bruus, Henrik |