Analysis of Fluid Flow and Heat Transfer in a Falling Film Using Volume of Fluid Method

This paper deals with the applicability of VOF method for interface tracking with heat transfer and validation of the VOF approach using experimental data. A vertical channel flow problem in which the liquid is falling inside a vertical channel along one of the walls from the top is analysed and liquid--air interface is tracked. In the same problem analysis of heat transfer from the wall has been incorporated. This approach has a potential to predict liquid film thickness in a heated tube/subchannel which will lead to the evaluation of critical power (power corresponding to critical heat flux). (authors)