Scaling of heat and mass transfer in turbulent convection in moist air-flow

Abstract

Modeling mass transfer-rates on cooled surfaces from humid air is important to determine whether fogging occurs on technical surfaces like automotive windshields, headlights, or inside airplane fuselage. Industrial grade thermal design tools for i.e. automotive headlights do not reliably predict the occurrence of condensation or the duration of defogging in the early design stage. In order to improve the prediction of the latent heat transfer and to quantify the influence of changing boundary conditions, experimental investigations in a mixed convective air-flow with phase transition have been performed.