Numerical investigation of surface acoustic wave driven microparticle acoustophoresis

N. Nama, R. Barnkob, C. J. Kähler, F. Costanzo, T. J. Huang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We present a numerical study to investigate the acoustophoretic motion of particles inside a liquidfilled polydimethysiloxane (PDMS) microchannel actuated by surface acoustic waves (SAW). We employ a perturbation approach to divide the flow variables into time-harmonic first order components and steady second-order components. We investigate a range of particle sizes to demonstrate the transition from streaming-drag-dominated to radiation-force-dominated acoustophoresis. We also demonstrate numerically the capability to tune the position of a pressure node by tuning the phase difference between two incoming SAWs.

Original languageEnglish (US)
Title of host publicationMicroTAS 2015 - 19th International Conference on Miniaturized Systems for Chemistry and Life Sciences
PublisherChemical and Biological Microsystems Society
Pages1002-1004
Number of pages3
ISBN (Electronic)9780979806483
StatePublished - Jan 1 2015
Event19th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2015 - Gyeongju, Korea, Republic of
Duration: Oct 25 2015Oct 29 2015

Publication series

NameMicroTAS 2015 - 19th International Conference on Miniaturized Systems for Chemistry and Life Sciences

Other

Other19th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2015
CountryKorea, Republic of
CityGyeongju
Period10/25/1510/29/15

All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering

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