Study of a laminar falling film flowing over a wavy wall column: Part I. Numerical investigation of the flow pattern and the coupled heat and mass transfer

Stéphane Negny (1) , Michel Meyer (1) , Michel Prevost (1)

1 LGC - Laboratoire de Génie Chimique

Flow pattern and heat and mass transfer characteristics for a film flowing over a vertical wavy column are numerically investigated in a laminar flow regime. In our approach, the heat and mass transfer coefficients are avoided in order to include hydrodynamics directly in the heat and mass transfer rates. As a consequence the numerical model is decomposed into two steps. Firstly, the flow pattern for a film with a free interface is developed. Secondly, heat and mass transfer are investigated with the incorporation of velocity fields. The heat and mass transfer coefficients increase in laminar flow.

Mots clés: Flow pattern; Heat; Mass transfer

Domaines: Génie des procédés; Génie chimique

Stéphane Negny, Michel Meyer, Michel Prevost. Study of a laminar falling film flowing over a wavy wall column: Part I. Numerical investigation of the flow pattern and the coupled heat and mass transfer. International Journal of Heat and Mass Transfer, 2001, 4 (11), pp.0. ⟨10.1016/S0017-9310(00)00236-2⟩. ⟨hal-03604734⟩