Fast Microscale Acoustic Streaming Driven by a Temperature-Gradient-Induced Nondissipative Acoustic Body Force
(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:
https://lup.lub.lu.se/record/b1541737-4d30-4f0e-8fc9-9abdeb8ef05f
- author
- Qiu, Wei LU ; Joergensen, Jonas ; Corato, Enrico LU ; Bruus, Henrik and Augustsson, Per LU
- organization
- publishing date
- 2021-08-03
- 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}}, }