Lessons Learned from the Application of CFD Models in the Prediction of Heat Transfer to Fluids at Supercritical Pressure

Abstract

Based on previous and recent work on the subject, the paper summarizes the results obtained in the \n\nassessment of various CFD codes and models against experimental data related to heat transfer with \n\nfluids at supercritical pressure. The aim of the work is to summarise the lessons learned in this regard, \n\ndrawing conclusions about model suitability. The results discussed address different codes, models, \n\nfluids and geometrical conditions. In particular, experiments with both water and carbon dioxide are \n\nconsidered, the FLUENT and the STAR-CCM+ commercial codes were used together with two \n\ndifferent in-house codes adopting different k- ε , k- ω and k- τ models. Experimental data related to \n\ncircular and non-circular ducts are addressed.