Modeling of Thermal-Hydraulic Processes in the Marine Power Installation Elements

Abstract

The results of the current study presented the hydrodynamics and heat transfer features occur in the pipe systems of the thermal-hydraulic various elements of the ship nuclear power installations. A comparative analysis of the turbulent models choice, their approbation on typical elements of the curved pipelines, and comparison of the calculation results with experimental data were fulfilled. The conditions of the swirl flow crisis were determined on base of obtained results of theoretical studies and comparison with experimental data. The mechanism of occurrence of acoustic oscillations generated by large-scale vortex structures and causes of cyclic thermal loads were identified. The fundamental nature of the research, the use of the thermodynamic approach and the conclusions of the stability theory made it possible to predict the results of numerical calculations.