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Acoustic resonances in straight micro channels: Beyond the 1D-approximation

Hagsater, S. M.; Lenshof, Andreas LU ; Skafte-Pedersen, P.; Kutter, J. P.; Laurell, Thomas LU and Bruus, H. (2008) In Lab on A Chip 8(7). p.1178-1184
Abstract
Acoustic actuation can be used to perform several tasks in microfluidic systems. In this paper, we investigate an acoustic separator through micro-PIV analysis in stop-flow mode and numerical simulations, and a good agreement between the two is found. Moreover, we demonstrate that it is not sufficient only to characterize devices in flow-through mode, since in these systems much different resonant patterns can result in similarly looking band formations. Furthermore, we conclude that extended 1D approximations of the acoustic radiation force are inadvisable, and instead, a 2D model is preferred. The results presented here provide valuable insight into the nature and functionality of acoustic microdevices, and should be useful in the... (More)
Acoustic actuation can be used to perform several tasks in microfluidic systems. In this paper, we investigate an acoustic separator through micro-PIV analysis in stop-flow mode and numerical simulations, and a good agreement between the two is found. Moreover, we demonstrate that it is not sufficient only to characterize devices in flow-through mode, since in these systems much different resonant patterns can result in similarly looking band formations. Furthermore, we conclude that extended 1D approximations of the acoustic radiation force are inadvisable, and instead, a 2D model is preferred. The results presented here provide valuable insight into the nature and functionality of acoustic microdevices, and should be useful in the interpretation and understanding of the same. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Lab on A Chip
volume
8
issue
7
pages
1178 - 1184
publisher
Royal Society of Chemistry
external identifiers
  • wos:000257236900026
  • scopus:46149106817
ISSN
1473-0189
DOI
10.1039/b801028e
language
English
LU publication?
yes
id
b304721b-5f2c-4ff7-b913-04db639d09c2 (old id 1256990)
date added to LUP
2008-10-15 09:23:31
date last changed
2017-08-27 04:13:14
@article{b304721b-5f2c-4ff7-b913-04db639d09c2,
  abstract     = {Acoustic actuation can be used to perform several tasks in microfluidic systems. In this paper, we investigate an acoustic separator through micro-PIV analysis in stop-flow mode and numerical simulations, and a good agreement between the two is found. Moreover, we demonstrate that it is not sufficient only to characterize devices in flow-through mode, since in these systems much different resonant patterns can result in similarly looking band formations. Furthermore, we conclude that extended 1D approximations of the acoustic radiation force are inadvisable, and instead, a 2D model is preferred. The results presented here provide valuable insight into the nature and functionality of acoustic microdevices, and should be useful in the interpretation and understanding of the same.},
  author       = {Hagsater, S. M. and Lenshof, Andreas and Skafte-Pedersen, P. and Kutter, J. P. and Laurell, Thomas and Bruus, H.},
  issn         = {1473-0189},
  language     = {eng},
  number       = {7},
  pages        = {1178--1184},
  publisher    = {Royal Society of Chemistry},
  series       = {Lab on A Chip},
  title        = {Acoustic resonances in straight micro channels: Beyond the 1D-approximation},
  url          = {http://dx.doi.org/10.1039/b801028e},
  volume       = {8},
  year         = {2008},
}