Temperature Fields of Two-Liquid Droplets Moving in Preheated Medium before Micro-Explosive Fragmentation

D. V. Antonov, G. V. Kuznetsov, R. M. Fedorenko, A. S. Filatova

Research output: Contribution to journalArticle

Abstract

Abstract: The paper present experimental results for temperature fields inheterogeneous droplets of liquids, freely falling in a preheated gaseousmedium, before their micro-explosive fragmentation. The opticaltechnique of Planar Laser Induced Fluorescence was applied. Unlike theknown results of other authors, such fields were obtained for the firsttime without using holders for droplets, the latter heated in thetemperature range of 900Cto 1100C.The aim was to approach promising gas-vapor-droplet technologies. It isshown that for micro-explosive disintegration of a droplet containing aflammable component (by the example of Diesel and oils of two grades)and water, the necessary and sufficient condition is that the waterreaches the boiling point. In this case, local superheating of theinter-component interface is sufficient. Motion intensifies thetransformation of droplet and its subsequent destruction with appearanceof polydisperse cloud.

Original languageEnglish
Pages (from-to)234-244
Number of pages11
JournalJournal of Engineering Thermophysics
Volume29
Issue number2
DOIs
Publication statusPublished - 1 Apr 2020

ASJC Scopus subject areas

  • Environmental Engineering
  • Modelling and Simulation
  • Condensed Matter Physics
  • Energy Engineering and Power Technology

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