Abstract

In this work an unsteady phase transformation mode for droplets that are slipping in humid air was numerically simulated. Initial slipping for droplet of 150 micrometre diameter is defined by Reynolds criterion values of 0, 5, 10, 20, 40 and 80. Warming droplet energy state is evaluated by balance method according to average heat flow density values in distinguished Fourier criterion time intervals at condensing and unsteady evaporation modes. At numerical experiment a balance control of heat flow on droplet surface was carried out, when allowable imbalance is defined by less than hundredth percentage point. A bright water slipping in humid gas impact for their heat transfer in condensation phase transformation mode was based on. This impact reveals due to reactivation of leaded heat to central layers as well as an equal droplet warming and duration grow of condensing mode. DOI: https://dx.doi.org/10.5755/j01.mech.21.5.12167

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