Model Developments to predict the Critical Heat Flux

The presentation gives an overview on CFD-model delvelopments to predict the critical heat flux. Boiling is a very effective heat transfer mechanism but limited to the critical heat flux. The correct simulation of this phenomenon contributes to the safely and economical operation of energy generating facilities. Heat flux partition algorithms are presented. A more detailed description of the phenomena in the bulk is shown. Actual tendencies for the correct simulation of the microscopic phenomena by sublayer models are described.