Abo Bibliothek: Guest

ISSN Online: 2377-424X

International Heat Transfer Conference 12
August, 18-23, 2002, Grenoble, France

Numerical investigation of a dynamic contact line model for perfectly wetting liquids on a heated wall of finite conductivity

Get access (open in a dialog) DOI: 10.1615/IHTC12.2540
6 pages

Abstrakt

A dynamic evaporating contact line model for perfectly wetting fluids is built. This model includes the disjoining pressure, surface tension, recoil pressure, interface resistance and viscous stress. A numerical method is used to solve the set of equations, including the two-dimensional diffusion-convection heat transfer problem. We compute the macroscopic contact angle and the overall evaporation heat transfer up to a fixed macroscopic length scale and describe the governing phenomena. We found that the motion of the contact line can lead to a tremendous increase of the local heat flux.