Oscillatory Motion of a Droplet Cluster

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

نتاج البحث: نشر في مجلةمقالةمراجعة النظراء

ملخص

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.

اللغة الأصليةالإنجليزيّة
الصفحات (من إلى)23572-23576
عدد الصفحات5
دوريةJournal of Physical chemistry c
المعرِّفات الرقمية للأشياء
حالة النشراسْتُلِم/تحت الطبع - 2019

All Science Journal Classification (ASJC) codes

  • !!Electronic, Optical and Magnetic Materials
  • !!General Energy
  • !!Surfaces, Coatings and Films
  • !!Physical and Theoretical Chemistry

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