TY - JOUR

T1 - Nonstationary Evolution of the Size, Composition, and Temperature of Microdroplets of Nonideal Two and Three Component Aqueous Solutions

AU - Martyukova, D. S.

AU - Shchekin, A. K.

AU - Kuchma, A. E.

AU - Lezova, A. A.

PY - 2016

Y1 - 2016

N2 - Results of numerical solution have been presented for a set of equations describing the nonstationary and nonisothermal growth or evaporation of microdroplets consisting of ethanol and water, sulfuric acid and water, and sulfuric and nitric acids and water. Time dependences of droplet size, temperature, and composition have been determined at low concentrations of a condensable vapor, as compared with the concentration of a carrier gas in an ambient vapor–gas mixture. The calculations have been performed using different initial conditions and approximations for the dependences of saturation vapor pressures, activity coeffi cients, and partial heats of condensation of the components, as well as average volumes per molecule on droplet composition and temperature. By the examples of ethanol–water and sulfuric acid–water droplets, it has been shown that nonmonotonic variations in the droplet radius are possible. Regimes of nonmonotonic variations in the temperature of a droplet that precede the onset of its stat

AB - Results of numerical solution have been presented for a set of equations describing the nonstationary and nonisothermal growth or evaporation of microdroplets consisting of ethanol and water, sulfuric acid and water, and sulfuric and nitric acids and water. Time dependences of droplet size, temperature, and composition have been determined at low concentrations of a condensable vapor, as compared with the concentration of a carrier gas in an ambient vapor–gas mixture. The calculations have been performed using different initial conditions and approximations for the dependences of saturation vapor pressures, activity coeffi cients, and partial heats of condensation of the components, as well as average volumes per molecule on droplet composition and temperature. By the examples of ethanol–water and sulfuric acid–water droplets, it has been shown that nonmonotonic variations in the droplet radius are possible. Regimes of nonmonotonic variations in the temperature of a droplet that precede the onset of its stat

KW - droplet condensation evaporation diffusion multicomponent nonstationary non-ideal

U2 - 10.1134/S1061933X16030108

DO - 10.1134/S1061933X16030108

M3 - Article

VL - 78

SP - 353

EP - 362

JO - Colloid Journal

JF - Colloid Journal

SN - 1061-933X

IS - 3

ER -