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Scattering and attenuation of surface acoustic waves in droplet actuation

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Scattering and attenuation of surface acoustic waves in droplet actuation

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dc.contributor.author Jiao, Z. J.
dc.contributor.author Huang, Xiaoyang
dc.contributor.author Nguyen, Nam-Trung
dc.date.accessioned 2012-05-08T07:11:28Z
dc.date.available 2012-05-08T07:11:28Z
dc.date.copyright 2008
dc.date.issued 2012-05-08
dc.identifier.citation Jiao, Z. J., Huang, X. Y., & Nguyen, N. T. (2008). Scattering and attenuation of acoustic surface waves in droplet actuation. Journal of Physics A: Mathematical and Theoretical, 41(35), 355502.
dc.identifier.uri http://hdl.handle.net/10220/7823
dc.description.abstract This paper presents an analytical model for surface acoustic waves (SAW) in actuating a single liquid droplet on a piezoelectric substrate. Both scattering waves outside the droplet and attenuation waves beneath the droplet are obtained, and the energy transfer from SAW to droplet in the process of actuation is calculated. The results from this analytical model can provide qualitative explanations to some experimental observations, such as the weak actuation behind the droplet and flow patterns inside the droplet. It is found that effective actuation wavelength is around 1/5 of the droplet radius, at which the droplet absorbs the maximum incident SAW energy.
dc.format.extent 11 p.
dc.language.iso en
dc.relation.ispartofseries Journal of physics A: mathematical and theoretical
dc.rights © 2008 IOP Publishing Ltd. This is the author created version of a work that has been peer reviewed and accepted for publication by Journal of Physics A: Mathematical and Theoretical, IOP Publishing Ltd. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: DOI: [http://dx.doi.org.ezlibproxy1.ntu.edu.sg/10.1088/1751-8113/41/35/355502].
dc.subject DRNTU::Engineering::Mechanical engineering.
dc.title Scattering and attenuation of surface acoustic waves in droplet actuation
dc.type Journal Article
dc.contributor.school School of Mechanical and Aerospace Engineering
dc.identifier.doi http://dx.doi.org.ezlibproxy1.ntu.edu.sg/10.1088/1751-8113/41/35/355502
dc.description.version Accepted version
dc.identifier.rims 134844

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