Acoustic Force Density Acting on Inhomogeneous Fluids in Acoustic Fields
Författare
Summary, in English
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.
Avdelning/ar
Publiceringsår
2016-09-09
Språk
Engelska
Sidor
114504-114504
Publikation/Tidskrift/Serie
Physical Review Letters
Volym
117
Issue
11
Fulltext
Länkar
Dokumenttyp
Artikel i tidskrift
Förlag
American Physical Society
Ämne
- Physical Sciences
Status
Published
ISBN/ISSN/Övrigt
- ISSN: 1079-7114