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

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Acoustic resonances in straight micro channels: Beyond the 1D-approximation. / Hagsater, S. M.; Lenshof, Andreas; Skafte-Pedersen, P.; Kutter, J. P.; Laurell, Thomas; Bruus, H.

In: Lab on a Chip, Vol. 8, No. 7, 2008, p. 1178-1184.

Research output: Contribution to journalArticle

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Hagsater, SM, Lenshof, A, Skafte-Pedersen, P, Kutter, JP, Laurell, T & Bruus, H 2008, 'Acoustic resonances in straight micro channels: Beyond the 1D-approximation', Lab on a Chip, vol. 8, no. 7, pp. 1178-1184. https://doi.org/10.1039/b801028e

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Author

Hagsater, S. M. ; Lenshof, Andreas ; Skafte-Pedersen, P. ; Kutter, J. P. ; Laurell, Thomas ; Bruus, H. / Acoustic resonances in straight micro channels: Beyond the 1D-approximation. In: Lab on a Chip. 2008 ; Vol. 8, No. 7. pp. 1178-1184.

RIS

TY - JOUR

T1 - Acoustic resonances in straight micro channels: Beyond the 1D-approximation

AU - Hagsater, S. M.

AU - Lenshof, Andreas

AU - Skafte-Pedersen, P.

AU - Kutter, J. P.

AU - Laurell, Thomas

AU - Bruus, H.

PY - 2008

Y1 - 2008

N2 - 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.

AB - 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.

U2 - 10.1039/b801028e

DO - 10.1039/b801028e

M3 - Article

VL - 8

SP - 1178

EP - 1184

JO - Lab on a Chip - Miniaturisation for Chemistry and Biology

T2 - Lab on a Chip - Miniaturisation for Chemistry and Biology

JF - Lab on a Chip - Miniaturisation for Chemistry and Biology

SN - 1473-0189

IS - 7

ER -