Heat and mass transfer in the liquid film on a vertical wall in roll-wave regime

V. E. Nakoryakov, V. V. Ostapenko, M. V. Bartashevich

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

The investigation of thin liquid film flowing down a vertical wall in the roll-wave regime in presence of heat and mass transfer through the free surface is presented. The roll-wave equation taking into account heat and mass transfer through the liquid-vapor interface has been derived. The self-similar solutions of the progressive-wave type for film thickness have been obtained. The families of discontinuous solutions have been constructed, where the progressive waves are conjugated with each other or with "residual" film thickness through the strong discontinuity. As an example, the calculations of the condensate water film flowing down a vertical surface are presented.

Original languageEnglish
Pages (from-to)6514-6518
Number of pages5
JournalInternational Journal of Heat and Mass Transfer
Volume55
Issue number23-24
DOIs
Publication statusPublished - Nov 2012
Externally publishedYes

Keywords

  • Condensation
  • Falling film
  • Heat and mass transfer
  • Progressive waves
  • Roll waves
  • Self-similar solutions

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes

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