Oscillatory Motion of a Droplet Cluster

Alexander A. Fedorets; Nurken E. Aktaev; Dmitrii N. Gabyshev; Edward Bormashenko; Leonid A. Dombrovsky; Michael Nosonovsky

doi:https://doi.org/10.1021/acs.jpcc.9b08194

Oscillatory Motion of a Droplet Cluster

Alexander A. Fedorets, Nurken E. Aktaev, Dmitrii N. Gabyshev, Edward Bormashenko, Leonid A. Dombrovsky, Michael Nosonovsky

Ariel University

Research output: Contribution to journal › Article › peer-review

Abstract

Horizontal oscillations of small droplet clusters (from one to four droplets) levitating over a locally heated water layer in upward vapor-air flow are investigated experimentally. These oscillations are caused by a complex dynamic interaction between the droplets and the nonsteady gas flow. The path of the center of the droplet cluster is similar to a random walk in a potential well. The vibrational spectra of clusters' centers obtained by Fourier analysis showed several frequency peaks between f = 1.61 and 5.96 Hz found in all clusters, which shows that the cluster tends to oscillate as a whole. The possibility of decoupling of the aerodynamic interaction between the gas flow and the droplets and the interaction between individual droplets is discussed.

Original language	English
Pages (from-to)	23572-23576
Number of pages	5
Journal	Journal of Physical chemistry c
DOIs	https://doi.org/10.1021/acs.jpcc.9b08194
State	Accepted/In press - 2019

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Energy(all)
Physical and Theoretical Chemistry
Surfaces, Coatings and Films

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https://doi.org/10.1021/acs.jpcc.9b08194

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title = "Oscillatory Motion of a Droplet Cluster",

abstract = "Horizontal oscillations of small droplet clusters (from one to four droplets) levitating over a locally heated water layer in upward vapor-air flow are investigated experimentally. These oscillations are caused by a complex dynamic interaction between the droplets and the nonsteady gas flow. The path of the center of the droplet cluster is similar to a random walk in a potential well. The vibrational spectra of clusters' centers obtained by Fourier analysis showed several frequency peaks between f = 1.61 and 5.96 Hz found in all clusters, which shows that the cluster tends to oscillate as a whole. The possibility of decoupling of the aerodynamic interaction between the gas flow and the droplets and the interaction between individual droplets is discussed.",

author = "Fedorets, {Alexander A.} and Aktaev, {Nurken E.} and Gabyshev, {Dmitrii N.} and Edward Bormashenko and Dombrovsky, {Leonid A.} and Michael Nosonovsky",

note = "Publisher Copyright: Copyright {\textcopyright} 2019 American Chemical Society.",

year = "2019",

doi = "https://doi.org/10.1021/acs.jpcc.9b08194",

language = "الإنجليزيّة",

pages = "23572--23576",

journal = "Journal of Physical chemistry c",

issn = "1932-7447",

publisher = "American Chemical Society",

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TY - JOUR

T1 - Oscillatory Motion of a Droplet Cluster

AU - Fedorets, Alexander A.

AU - Aktaev, Nurken E.

AU - Gabyshev, Dmitrii N.

AU - Bormashenko, Edward

AU - Dombrovsky, Leonid A.

AU - Nosonovsky, Michael

PY - 2019

Y1 - 2019

N2 - Horizontal oscillations of small droplet clusters (from one to four droplets) levitating over a locally heated water layer in upward vapor-air flow are investigated experimentally. These oscillations are caused by a complex dynamic interaction between the droplets and the nonsteady gas flow. The path of the center of the droplet cluster is similar to a random walk in a potential well. The vibrational spectra of clusters' centers obtained by Fourier analysis showed several frequency peaks between f = 1.61 and 5.96 Hz found in all clusters, which shows that the cluster tends to oscillate as a whole. The possibility of decoupling of the aerodynamic interaction between the gas flow and the droplets and the interaction between individual droplets is discussed.

AB - Horizontal oscillations of small droplet clusters (from one to four droplets) levitating over a locally heated water layer in upward vapor-air flow are investigated experimentally. These oscillations are caused by a complex dynamic interaction between the droplets and the nonsteady gas flow. The path of the center of the droplet cluster is similar to a random walk in a potential well. The vibrational spectra of clusters' centers obtained by Fourier analysis showed several frequency peaks between f = 1.61 and 5.96 Hz found in all clusters, which shows that the cluster tends to oscillate as a whole. The possibility of decoupling of the aerodynamic interaction between the gas flow and the droplets and the interaction between individual droplets is discussed.

UR - http://www.scopus.com/inward/record.url?scp=85073016998&partnerID=8YFLogxK

U2 - https://doi.org/10.1021/acs.jpcc.9b08194

DO - https://doi.org/10.1021/acs.jpcc.9b08194

M3 - مقالة

SN - 1932-7447

SP - 23572

EP - 23576

JO - Journal of Physical chemistry c

JF - Journal of Physical chemistry c

ER -

Oscillatory Motion of a Droplet Cluster

Abstract

All Science Journal Classification (ASJC) codes

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