THERMAL SCIENCE

International Scientific Journal

INTENSIVE EVAPORATION AND BOILING OF A HETEROGENEOUS LIQUID DROPLET WITH AN EXPLOSIVE DISINTEGRATION IN HIGH-TEMPERATURE GAS AREA

ABSTRACT
The using of the high-speed (not less than 105 frames per second) video recording tools (“Phantom”) and the software package ("TEMA Automotive") allowed carrying out an experimental research of laws of intensive vaporization with an explosive disintegration of heterogeneous (with a single solid nontransparent inclusion) liquid droplet (by the example of water) in high-temperature (500-800 K) gases (combustion products). Times of the processes under consideration and stages (liquid heat-up, evaporation from an external surface, bubble boiling at internal interfaces, growth of bubble sizes, explosive droplet breakup) were established. Necessary conditions of an explosive vaporization of a heterogeneous droplet were found out. Mechanisms of this process and an influence of properties of liquid and inclusion material on them were determined.
KEYWORDS
PAPER SUBMITTED: 2015-04-18
PAPER REVISED: 2015-10-05
PAPER ACCEPTED: 2015-10-24
PUBLISHED ONLINE: 2015-11-15
DOI REFERENCE: https://doi.org/10.2298/TSCI150418164P
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2016, VOLUME 20, ISSUE Issue 2, PAGES [541 - 553]
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