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Transient evaporation of liquid water films and condensation of humid air at the isothermal walls of a square cavity

H. Sun 1 Guy Lauriat 1, * Xavier Nicolas 1
* Corresponding author
1 TCM
MSME - Laboratoire de Modélisation et Simulation Multi Echelle
Abstract : The aim of this paper is to present modelling and numerical simulations of heat and mass transfer by double-diffusive convection and surface condensation or evaporation in a two-dimensional square cavity subjected to a uniform, but time-dependent wall temperature. At initial state, the cavity is filled with quiescent humid air at uniform temperature and density. By decreasing the wall temperature, condensation occurs at the four wall surfaces. The walls are then heated and evaporation of the liquid water is considered. Since the mass of humid air and average pressure experience noticeable changes during the periodic process, a weakly compressible formulation has been used for the modelling of the thermosolutal flow. Local thermodynamic assumption at the liquid-vapor interface and thin liquid film approximation are introduced.
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https://hal-upec-upem.archives-ouvertes.fr/hal-00711395
Contributor : Xavier Nicolas <>
Submitted on : Sunday, June 24, 2012 - 5:04:49 PM
Last modification on : Thursday, March 19, 2020 - 11:52:05 AM

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H. Sun, Guy Lauriat, Xavier Nicolas. Transient evaporation of liquid water films and condensation of humid air at the isothermal walls of a square cavity. 2010 14th International Heat Transfer Conference, IHTC14, Aug 2010, France. IHTC14-22256, pp. 203-208, ⟨10.1115/IHTC14-22467⟩. ⟨hal-00711395⟩

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