Acoustic Force Density Acting on Inhomogeneous Fluids in Acoustic Fields
(2016) In Physical Review Letters 117(11). p.114504-114504- Abstract
- We present a theory for the acoustic force density acting on inhomogeneous fluids in acoustic fields on time scales that are slow compared to the acoustic oscillation period. The acoustic force density depends on gradients in the density and compressibility of the fluid. For microfluidic systems, the theory predicts a relocation of the inhomogeneities into stable field-dependent configurations, which are qualitatively different from the horizontally layered configurations due to gravity. Experimental validation is obtained by confocal imaging of aqueous solutions in a glass-silicon microchip.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/214191b5-3729-41aa-8966-5d0364327655
- author
- Karlsen, Jonas T. ; Augustsson, Per LU and Bruus, Henrik
- organization
- publishing date
- 2016-09-09
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physical Review Letters
- volume
- 117
- issue
- 11
- pages
- 6 pages
- publisher
- American Physical Society
- external identifiers
-
- pmid:27661695
- scopus:84988697466
- wos:000383248700010
- ISSN
- 1079-7114
- DOI
- 10.1103/PhysRevLett.117.114504
- language
- English
- LU publication?
- yes
- id
- 214191b5-3729-41aa-8966-5d0364327655
- date added to LUP
- 2016-09-29 10:01:52
- date last changed
- 2022-01-30 06:24:21
@article{214191b5-3729-41aa-8966-5d0364327655, abstract = {{We present a theory for the acoustic force density acting on inhomogeneous fluids in acoustic fields on time scales that are slow compared to the acoustic oscillation period. The acoustic force density depends on gradients in the density and compressibility of the fluid. For microfluidic systems, the theory predicts a relocation of the inhomogeneities into stable field-dependent configurations, which are qualitatively different from the horizontally layered configurations due to gravity. Experimental validation is obtained by confocal imaging of aqueous solutions in a glass-silicon microchip.}}, author = {{Karlsen, Jonas T. and Augustsson, Per and Bruus, Henrik}}, issn = {{1079-7114}}, language = {{eng}}, month = {{09}}, number = {{11}}, pages = {{114504--114504}}, publisher = {{American Physical Society}}, series = {{Physical Review Letters}}, title = {{Acoustic Force Density Acting on Inhomogeneous Fluids in Acoustic Fields}}, url = {{https://lup.lub.lu.se/search/files/13178893/Karlsen_acoustic_force_density_inhomog_PRL_117_114504_2016.pdf}}, doi = {{10.1103/PhysRevLett.117.114504}}, volume = {{117}}, year = {{2016}}, }