A KINETIC ONE-DIMENSIONAL MODEL OF AN STEADY-STATE CONDENSATION PROCESS

Piotr Gajewski, Andrzej Kulicki, Andrzej Wiśniewski

Abstract


The solution has been presented in this paper of the one-dimensional steady condensation of pure vapour at a plane liquid surface. The medium is considered herein as a perfect gas with no internal degrees of freedom. A full non-linear BGK model equation has been used for description purposes. The BGK model equation has been solved with the application of the discrete co-ordinates method. Calculations have been done for water vapour. Temperature and density distribution within the vapour space have thus been obtained and the flux rate of condensation medium determined for a temperature jump given depending on the co-efficients of condensation and evaporation considered as parameters.


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