Peculiarities of heat transfer in water droplets with a solid inclusion during heating in a high-temperature gas medium
- Authors: Kuznetsov G.V.1, Strizhak P.A.1
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Affiliations:
- National Research Tomsk Polytechnic University
- Issue: Vol 25, No 1 (2016)
- Pages: 45-54
- Section: Article
- URL: https://journal-vniispk.ru/1810-2328/article/view/210992
- DOI: https://doi.org/10.1134/S1810232816010057
- ID: 210992
Cite item
Abstract
A physical model and a mathematical model of heat transfer in the conditions of inhomogeneous (with a solid inclusion—a carbon particle) liquid droplet evaporation while moving through high-temperature (800–1500 K) gases are formulated. Numerical investigations were performed using, as an example, a spherical inhomogeneous water droplet during heating in the air medium. The most probable mechanism of phase transitions in a water–carbon particle–heated air system is considered (the initial droplet size, radius, varied in the range from 0.5 mm to 1.5 mm, the inclusion radius was 0.1–1 mm). It has been found that in certain conditions, besides water evaporation from the outer (free) droplet surface, intensive vaporization is possible at the liquid–solid inclusion interface. Conditions of realization of these phase transitions in inhomogeneous water droplet–high-temperature gas medium systems are identified.
About the authors
G. V. Kuznetsov
National Research Tomsk Polytechnic University
Email: pavelspa@tpu.ru
Russian Federation, pr. Lenina 30, Tomsk, 634050
P. A. Strizhak
National Research Tomsk Polytechnic University
Author for correspondence.
Email: pavelspa@tpu.ru
Russian Federation, pr. Lenina 30, Tomsk, 634050
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