Oscillatory Motion of a Droplet Cluster

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

פרסום מחקרי: פרסום בכתב עתמאמרביקורת עמיתים

תקציר

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.

שפה מקוריתאנגלית
עמודים (מ-עד)23572-23576
מספר עמודים5
כתב עתJournal of Physical chemistry c
מזהי עצם דיגיטלי (DOIs)
סטטוס פרסוםהתקבל/בדפוס - 2019

ASJC Scopus subject areas

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  • ???subjectarea.asjc.2100.2100???
  • ???subjectarea.asjc.2500.2508???
  • ???subjectarea.asjc.1600.1606???

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