Numerical Modeling of Freezing Water Droplets

Leandro Magalhães*, Rúben Meireles, A. R. R. Silva, Jorge Barata

*Corresponding author for this work

Research output: Contribution to journalConference articleScientificpeer-review

Abstract

This work enhances the understanding of droplet dynamics under cryogenics conditions through an in-house developed analytical tool used to predict the supercooling of water droplets. The physical process is based on a full-scale four-stage supercooling process in which the recalescence stage is assumed instantaneous and the crystallization kinematics of the droplet neglected. The transition temperature of each stage is obtained, resorting to a theoretical balance for the droplets internal energy against the heat loss to the environment. In this way, the representation for the droplets temperature curves alongside the time. The droplets are considered spherical, and the internal motion is so vigorous that complete mixing occurs. The droplets convective effects are accounted for using the Ranz-Marshall classical formulation.

Original languageEnglish
Pages (from-to)779-782
Number of pages4
JournalProceedings of the Thermal and Fluids Engineering Summer Conference
Volume2022-May
Publication statusPublished - 2022
Externally publishedYes
Event7th Thermal and Fluids Engineering Conference, TFEC 2022 - Las Vegas, United States
Duration: 15 May 202218 May 2022

Keywords

  • droplets cooling
  • four-stage freezing
  • supercooling

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