An engineering model of heat transfer through a turbulent falling liquid film for a condensing vapor flow

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Abstract

An engineering model of heat transfer through a turbulent falling liquid film for a condensing (or evaporating) vapor flow is suggested. A simple correlation for the eddy diffusivity, based on the Barenblatt's hypothesis of incomplete similarity, is employed for description of momentum and heat transfer across the liquid film. An equation for the dimensionless heat transfer coefficient at a substantial interfacial shear stress is obtained and successfully validated by experimental data available in open literature.

Original languageEnglish
Pages (from-to)1-8
Number of pages8
JournalChemical Engineering Research and Design
Volume187
DOIs
Publication statusPublished - Nov 2022

Keywords

  • Condensation
  • Eddy diffusivity
  • Heat transfer coefficient
  • Interfacial shear stress
  • Liquid film
  • Turbulence

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