Experimental measurement of interparticle acoustic radiation force in the Rayleigh limit.

Mohapatra, AR; Sepehrirahnama, S; Lim, K-M

Experimental measurement of interparticle acoustic radiation force in the Rayleigh limit.

Mohapatra, AR Sepehrirahnama, S

Lim, K-M

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Publisher:: AMER PHYSICAL SOC
Publication Type:: Journal Article
Citation:: Phys Rev E, 2018, 97, (5-1), pp. 053105
Issue Date:: 2018-05

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Field	Value	Language
dc.contributor.author	Mohapatra, AR
dc.contributor.author	Sepehrirahnama, S https://orcid.org/0000-0002-3280-3321
dc.contributor.author	Lim, K-M
dc.date.accessioned	2022-09-07T22:10:48Z
dc.date.available	2022-09-07T22:10:48Z
dc.date.issued	2018-05
dc.identifier.citation	Phys Rev E, 2018, 97, (5-1), pp. 053105
dc.identifier.issn	2470-0045
dc.identifier.issn	2470-0053
dc.identifier.uri	http://hdl.handle.net/10453/161494
dc.description.abstract	Acoustophoresis is a form of contact-free particle manipulation in microfluidic devices. The precision of manipulation can be enhanced with better understanding of the acoustic radiation force. In this paper we present the measurements of interparticle radiation force between a pair of polystyrene beads in the Rayleigh limit. The study is conducted for three different sizes of beads and the experimental results are of the same order of magnitude when compared with theoretical predictions. However, the experimental values are larger than the theoretical values. The trend of a decrease in the magnitude of the interparticle radiation force with decreasing particle size and increasing center-to-center distance between the particles is also observed experimentally. The experiments are conducted in the specific scenario where the pair of beads are in close proximity, but not in contact with each other, and the beads are approaching the pressure nodal plane with the center-to-center line aligned perpendicular to the incident wave. This scenario minimizes the presence of the primary radiation force, allowing accurate measurement of the interparticle force. The attractive nature of the interparticle force is observed, consistent with theoretical predictions.
dc.format	Print
dc.language	eng
dc.publisher	AMER PHYSICAL SOC
dc.relation.ispartof	Phys Rev E
dc.relation.isbasedon	10.1103/PhysRevE.97.053105
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	01 Mathematical Sciences, 02 Physical Sciences, 09 Engineering
dc.subject.classification	Fluids & Plasmas
dc.title	Experimental measurement of interparticle acoustic radiation force in the Rayleigh limit.
dc.type	Journal Article
utslib.citation.volume	97
utslib.location.activity	United States
utslib.for	01 Mathematical Sciences
utslib.for	02 Physical Sciences
utslib.for	09 Engineering
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
utslib.copyright.status	closed_access	*
dc.date.updated	2022-09-07T22:10:46Z
pubs.issue	5-1
pubs.publication-status	Published
pubs.volume	97
utslib.citation.issue	5-1

Abstract:

Acoustophoresis is a form of contact-free particle manipulation in microfluidic devices. The precision of manipulation can be enhanced with better understanding of the acoustic radiation force. In this paper we present the measurements of interparticle radiation force between a pair of polystyrene beads in the Rayleigh limit. The study is conducted for three different sizes of beads and the experimental results are of the same order of magnitude when compared with theoretical predictions. However, the experimental values are larger than the theoretical values. The trend of a decrease in the magnitude of the interparticle radiation force with decreasing particle size and increasing center-to-center distance between the particles is also observed experimentally. The experiments are conducted in the specific scenario where the pair of beads are in close proximity, but not in contact with each other, and the beads are approaching the pressure nodal plane with the center-to-center line aligned perpendicular to the incident wave. This scenario minimizes the presence of the primary radiation force, allowing accurate measurement of the interparticle force. The attractive nature of the interparticle force is observed, consistent with theoretical predictions.

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http://hdl.handle.net/10453/161494