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Fast Microscale Acoustic Streaming Driven by a Temperature-Gradient-Induced Nondissipative Acoustic Body Force

Qiu, Wei LU orcid ; Joergensen, Jonas ; Corato, Enrico LU ; Bruus, Henrik and Augustsson, Per LU (2021) In Physical Review Letters 127(6).
Abstract
We study acoustic streaming in liquids driven by a nondissipative acoustic body force created by light-induced temperature gradients. This thermoacoustic streaming produces a velocity amplitude nearly 100 times higher than the boundary-driven Rayleigh streaming and the Rayleigh-Bénard convection at a temperature gradient of 10 K/mm in the channel. The Rayleigh streaming is altered by the acoustic body force at a temperature gradient of only
0.5 K/mm. The thermoacoustic streaming allows for modular flow control and enhanced heat transfer at the microscale. Our study provides the groundwork for studying microscale acoustic streaming coupled with temperature fields.
Please use this url to cite or link to this publication:
author
; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review Letters
volume
127
issue
6
article number
064501
pages
6 pages
publisher
American Physical Society
external identifiers
  • scopus:85112387951
  • pmid:34420350
ISSN
1079-7114
DOI
10.1103/PhysRevLett.127.064501
language
English
LU publication?
yes
id
b1541737-4d30-4f0e-8fc9-9abdeb8ef05f
date added to LUP
2021-08-03 19:07:08
date last changed
2022-11-29 14:18:43
@article{b1541737-4d30-4f0e-8fc9-9abdeb8ef05f,
  abstract     = {{We study acoustic streaming in liquids driven by a nondissipative acoustic body force created by light-induced temperature gradients. This thermoacoustic streaming produces a velocity amplitude nearly 100 times higher than the boundary-driven Rayleigh streaming and the Rayleigh-Bénard convection at a temperature gradient of 10 K/mm in the channel. The Rayleigh streaming is altered by the acoustic body force at a temperature gradient of only <br/>0.5 K/mm. The thermoacoustic streaming allows for modular flow control and enhanced heat transfer at the microscale. Our study provides the groundwork for studying microscale acoustic streaming coupled with temperature fields.}},
  author       = {{Qiu, Wei and Joergensen, Jonas and Corato, Enrico and Bruus, Henrik and Augustsson, Per}},
  issn         = {{1079-7114}},
  language     = {{eng}},
  month        = {{08}},
  number       = {{6}},
  publisher    = {{American Physical Society}},
  series       = {{Physical Review Letters}},
  title        = {{Fast Microscale Acoustic Streaming Driven by a Temperature-Gradient-Induced Nondissipative Acoustic Body Force}},
  url          = {{http://dx.doi.org/10.1103/PhysRevLett.127.064501}},
  doi          = {{10.1103/PhysRevLett.127.064501}},
  volume       = {{127}},
  year         = {{2021}},
}