Dynamics of levitated objects in acoustic vortex fields

Abstract Acoustic levitation in gaseous media provides a tool to process solid and liquid materials without the presence of surfaces such as container walls and hence has been used widely in chemical analysis, high-temperature processing, drop dynamics and bioreactors. To date high-density objects c...

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Autores principales:	Z. Y. Hong, J. F. Yin, W. Zhai, N. Yan, W. L. Wang, J. Zhang, Bruce W. Drinkwater
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/966bbcf1ed62434896c45a3ca80fbea8
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spelling	oai:doaj.org-article:966bbcf1ed62434896c45a3ca80fbea82021-12-02T16:06:11ZDynamics of levitated objects in acoustic vortex fields10.1038/s41598-017-07477-12045-2322https://doaj.org/article/966bbcf1ed62434896c45a3ca80fbea82017-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-07477-1https://doaj.org/toc/2045-2322Abstract Acoustic levitation in gaseous media provides a tool to process solid and liquid materials without the presence of surfaces such as container walls and hence has been used widely in chemical analysis, high-temperature processing, drop dynamics and bioreactors. To date high-density objects can only be acoustically levitated in simple standing-wave fields. Here we demonstrate the ability of a small number of peripherally placed sources to generate acoustic vortex fields and stably levitate a wide range of liquid and solid objects. The forces exerted by these acoustic vortex fields on a levitated water droplet are observed to cause a controllable deformation of the droplet and/or oscillation along the vortex axis. Orbital angular momentum transfer is also shown to rotate a levitated object rapidly and the rate of rotation can be controlled by the source amplitude. We expect this research can increase the diversity of acoustic levitation and expand the application of acoustic vortices.Z. Y. HongJ. F. YinW. ZhaiN. YanW. L. WangJ. ZhangBruce W. DrinkwaterNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-7 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Z. Y. Hong J. F. Yin W. Zhai N. Yan W. L. Wang J. Zhang Bruce W. Drinkwater Dynamics of levitated objects in acoustic vortex fields
description	Abstract Acoustic levitation in gaseous media provides a tool to process solid and liquid materials without the presence of surfaces such as container walls and hence has been used widely in chemical analysis, high-temperature processing, drop dynamics and bioreactors. To date high-density objects can only be acoustically levitated in simple standing-wave fields. Here we demonstrate the ability of a small number of peripherally placed sources to generate acoustic vortex fields and stably levitate a wide range of liquid and solid objects. The forces exerted by these acoustic vortex fields on a levitated water droplet are observed to cause a controllable deformation of the droplet and/or oscillation along the vortex axis. Orbital angular momentum transfer is also shown to rotate a levitated object rapidly and the rate of rotation can be controlled by the source amplitude. We expect this research can increase the diversity of acoustic levitation and expand the application of acoustic vortices.
format	article
author	Z. Y. Hong J. F. Yin W. Zhai N. Yan W. L. Wang J. Zhang Bruce W. Drinkwater
author_facet	Z. Y. Hong J. F. Yin W. Zhai N. Yan W. L. Wang J. Zhang Bruce W. Drinkwater
author_sort	Z. Y. Hong
title	Dynamics of levitated objects in acoustic vortex fields
title_short	Dynamics of levitated objects in acoustic vortex fields
title_full	Dynamics of levitated objects in acoustic vortex fields
title_fullStr	Dynamics of levitated objects in acoustic vortex fields
title_full_unstemmed	Dynamics of levitated objects in acoustic vortex fields
title_sort	dynamics of levitated objects in acoustic vortex fields
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/966bbcf1ed62434896c45a3ca80fbea8
work_keys_str_mv	AT zyhong dynamicsoflevitatedobjectsinacousticvortexfields AT jfyin dynamicsoflevitatedobjectsinacousticvortexfields AT wzhai dynamicsoflevitatedobjectsinacousticvortexfields AT nyan dynamicsoflevitatedobjectsinacousticvortexfields AT wlwang dynamicsoflevitatedobjectsinacousticvortexfields AT jzhang dynamicsoflevitatedobjectsinacousticvortexfields AT brucewdrinkwater dynamicsoflevitatedobjectsinacousticvortexfields
_version_	1718385103546089472

Dynamics of levitated objects in acoustic vortex fields

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