Numerical and experimental investigation of the stability of a drop in a single-axis acoustic levitator

Acoustic levitation can be employed to hold liquid drops in midair, enabling novel applications in X-ray scattering of proteins, amorphous crystallization of solutions, or contactless mixing. Multiple studies have characterized the physical behavior of a levitated drop inside an acoustic field. Here...

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Authors: Brizzotti Andrade, Marco Aurélio, Marzo Pérez, Asier
Format: article
Status:Published version
Publication Date:2019
Country:España
Institution:Universidad Pública de Navarra
Repository:Academica-e. Repositorio Institucional de la Universidad Pública de Navarra
OAI Identifier:oai:academica-e.unavarra.es:2454/37009
Online Access:https://hdl.handle.net/2454/37009
Access Level:Open access
Keyword:Finite-element analysis
Drop breakup
Numerical methods
Acoustic levitation
Acoustics
Acoustic radiation pressure
Ultrasonics
Standing waves
Fluid drops
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spelling Numerical and experimental investigation of the stability of a drop in a single-axis acoustic levitatorBrizzotti Andrade, Marco AurélioMarzo Pérez, AsierFinite-element analysisDrop breakupNumerical methodsAcoustic levitationAcousticsAcoustic radiation pressureUltrasonicsStanding wavesFluid dropsAcoustic levitation can be employed to hold liquid drops in midair, enabling novel applications in X-ray scattering of proteins, amorphous crystallization of solutions, or contactless mixing. Multiple studies have characterized the physical behavior of a levitated drop inside an acoustic field. Here, we present a numerical and experimental study on the acoustic levitation of water drops in a single-Axis acoustic levitator consisting of an ultrasonic transducer and an opposing reflector. Instead of modeling an abstract incident acoustic field, our model considers the shape of the drop as well as the real geometry of the levitator. We also use a high-speed camera to observe the disintegration and the undesired oscillations of the drops. Our results show that the insertion of a drop in the levitator provokes a shift in its resonant frequency that depends on the shape of the drop. Second, the levitation behavior depends on whether the levitator operates slightly below or above the resonance. Third, if the levitator is driven above the resonant frequency, it is possible to levitate with more strength and avoid disintegration of the drop. This research provides an insight on how to achieve more stable experiments that avoid the bursting and undesired oscillations of the levitated sample. We hope that it will facilitate numerous experiments involving acoustically levitated liquid drops.This work was supported by the São Paulo Research Foundation—FAPESP (Grant No. 2017/27078-0).American Institute of PhysicsEstadística, Informática y MatemáticasEstatistika, Informatika eta Matematika2019info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/2454/37009reponame:Academica-e. Repositorio Institucional de la Universidad Pública de Navarrainstname:Universidad Pública de NavarraInglés© 2019 Author(s).info:eu-repo/semantics/openAccessoai:academica-e.unavarra.es:2454/370092026-06-17T12:41:47Z
dc.title.none.fl_str_mv Numerical and experimental investigation of the stability of a drop in a single-axis acoustic levitator
title Numerical and experimental investigation of the stability of a drop in a single-axis acoustic levitator
spellingShingle Numerical and experimental investigation of the stability of a drop in a single-axis acoustic levitator
Brizzotti Andrade, Marco Aurélio
Finite-element analysis
Drop breakup
Numerical methods
Acoustic levitation
Acoustics
Acoustic radiation pressure
Ultrasonics
Standing waves
Fluid drops
title_short Numerical and experimental investigation of the stability of a drop in a single-axis acoustic levitator
title_full Numerical and experimental investigation of the stability of a drop in a single-axis acoustic levitator
title_fullStr Numerical and experimental investigation of the stability of a drop in a single-axis acoustic levitator
title_full_unstemmed Numerical and experimental investigation of the stability of a drop in a single-axis acoustic levitator
title_sort Numerical and experimental investigation of the stability of a drop in a single-axis acoustic levitator
dc.creator.none.fl_str_mv Brizzotti Andrade, Marco Aurélio
Marzo Pérez, Asier
author Brizzotti Andrade, Marco Aurélio
author_facet Brizzotti Andrade, Marco Aurélio
Marzo Pérez, Asier
author_role author
author2 Marzo Pérez, Asier
author2_role author
dc.contributor.none.fl_str_mv Estadística, Informática y Matemáticas
Estatistika, Informatika eta Matematika
dc.subject.none.fl_str_mv Finite-element analysis
Drop breakup
Numerical methods
Acoustic levitation
Acoustics
Acoustic radiation pressure
Ultrasonics
Standing waves
Fluid drops
topic Finite-element analysis
Drop breakup
Numerical methods
Acoustic levitation
Acoustics
Acoustic radiation pressure
Ultrasonics
Standing waves
Fluid drops
description Acoustic levitation can be employed to hold liquid drops in midair, enabling novel applications in X-ray scattering of proteins, amorphous crystallization of solutions, or contactless mixing. Multiple studies have characterized the physical behavior of a levitated drop inside an acoustic field. Here, we present a numerical and experimental study on the acoustic levitation of water drops in a single-Axis acoustic levitator consisting of an ultrasonic transducer and an opposing reflector. Instead of modeling an abstract incident acoustic field, our model considers the shape of the drop as well as the real geometry of the levitator. We also use a high-speed camera to observe the disintegration and the undesired oscillations of the drops. Our results show that the insertion of a drop in the levitator provokes a shift in its resonant frequency that depends on the shape of the drop. Second, the levitation behavior depends on whether the levitator operates slightly below or above the resonance. Third, if the levitator is driven above the resonant frequency, it is possible to levitate with more strength and avoid disintegration of the drop. This research provides an insight on how to achieve more stable experiments that avoid the bursting and undesired oscillations of the levitated sample. We hope that it will facilitate numerous experiments involving acoustically levitated liquid drops.
publishDate 2019
dc.date.none.fl_str_mv 2019
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2454/37009
url https://hdl.handle.net/2454/37009
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.rights.none.fl_str_mv © 2019 Author(s).
info:eu-repo/semantics/openAccess
rights_invalid_str_mv © 2019 Author(s).
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv American Institute of Physics
publisher.none.fl_str_mv American Institute of Physics
dc.source.none.fl_str_mv reponame:Academica-e. Repositorio Institucional de la Universidad Pública de Navarra
instname:Universidad Pública de Navarra
instname_str Universidad Pública de Navarra
reponame_str Academica-e. Repositorio Institucional de la Universidad Pública de Navarra
collection Academica-e. Repositorio Institucional de la Universidad Pública de Navarra
repository.name.fl_str_mv
repository.mail.fl_str_mv
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