The effect of gas and water droplet temperature on characteristics of water-droplet deformation at moderate velocities of droplet movement

Research output: Contribution to journalArticle

Abstract

An experimental study has been performed on the effect of the temperature of gas and water droplets (3–6 mm in size) on deformation of water droplets that move with a moderate velocity (up to 5 m/s). A high-speed videocamera (recording at up to 105 fps) and a cross-correlation videocomplex were used. The droplet temperature varied in the range of 285–360 K. For gaseous mediums, air at a temperature of 280–300 K and condensed substance combustion products at a temperature about 1100 K were used. Typical deformation cycles were found. Their length, duration, and amplitude were calculated. The time a shape of droplet transforms into a new shape and the time the droplets retain their shape as they move through a gas medium have been determined. Approximating correlations for the basic characteristic of deformation under various heating or cooling conditions in a water droplet–gas system were derived.

Original languageEnglish
Pages (from-to)746-756
Number of pages11
JournalTheoretical Foundations of Chemical Engineering
Volume50
Issue number5
DOIs
Publication statusPublished - 1 Sep 2016

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Gases
Water
Temperature
Cooling
Heating
Air

Keywords

  • cooling
  • deformation
  • droplets
  • gaseous medium
  • heating
  • motion

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

Cite this

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title = "The effect of gas and water droplet temperature on characteristics of water-droplet deformation at moderate velocities of droplet movement",
abstract = "An experimental study has been performed on the effect of the temperature of gas and water droplets (3–6 mm in size) on deformation of water droplets that move with a moderate velocity (up to 5 m/s). A high-speed videocamera (recording at up to 105 fps) and a cross-correlation videocomplex were used. The droplet temperature varied in the range of 285–360 K. For gaseous mediums, air at a temperature of 280–300 K and condensed substance combustion products at a temperature about 1100 K were used. Typical deformation cycles were found. Their length, duration, and amplitude were calculated. The time a shape of droplet transforms into a new shape and the time the droplets retain their shape as they move through a gas medium have been determined. Approximating correlations for the basic characteristic of deformation under various heating or cooling conditions in a water droplet–gas system were derived.",
keywords = "cooling, deformation, droplets, gaseous medium, heating, motion",
author = "Volkov, {R. S.} and Kuznetsov, {G. V.} and Kuibin, {P. A.} and Strizhak, {P. A.}",
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T1 - The effect of gas and water droplet temperature on characteristics of water-droplet deformation at moderate velocities of droplet movement

AU - Volkov, R. S.

AU - Kuznetsov, G. V.

AU - Kuibin, P. A.

AU - Strizhak, P. A.

PY - 2016/9/1

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N2 - An experimental study has been performed on the effect of the temperature of gas and water droplets (3–6 mm in size) on deformation of water droplets that move with a moderate velocity (up to 5 m/s). A high-speed videocamera (recording at up to 105 fps) and a cross-correlation videocomplex were used. The droplet temperature varied in the range of 285–360 K. For gaseous mediums, air at a temperature of 280–300 K and condensed substance combustion products at a temperature about 1100 K were used. Typical deformation cycles were found. Their length, duration, and amplitude were calculated. The time a shape of droplet transforms into a new shape and the time the droplets retain their shape as they move through a gas medium have been determined. Approximating correlations for the basic characteristic of deformation under various heating or cooling conditions in a water droplet–gas system were derived.

AB - An experimental study has been performed on the effect of the temperature of gas and water droplets (3–6 mm in size) on deformation of water droplets that move with a moderate velocity (up to 5 m/s). A high-speed videocamera (recording at up to 105 fps) and a cross-correlation videocomplex were used. The droplet temperature varied in the range of 285–360 K. For gaseous mediums, air at a temperature of 280–300 K and condensed substance combustion products at a temperature about 1100 K were used. Typical deformation cycles were found. Their length, duration, and amplitude were calculated. The time a shape of droplet transforms into a new shape and the time the droplets retain their shape as they move through a gas medium have been determined. Approximating correlations for the basic characteristic of deformation under various heating or cooling conditions in a water droplet–gas system were derived.

KW - cooling

KW - deformation

KW - droplets

KW - gaseous medium

KW - heating

KW - motion

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