Oscillatory Motion of a Droplet Cluster

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

Research output: Contribution to journalArticlepeer-review


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 languageEnglish
Pages (from-to)23572-23576
Number of pages5
JournalJournal of Physical chemistry c
StateAccepted/In press - 2019

All Science Journal Classification (ASJC) codes

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


Dive into the research topics of 'Oscillatory Motion of a Droplet Cluster'. Together they form a unique fingerprint.

Cite this