Use of URANS approach for determination of temperature fluctuations when mixing triple-jet sodium at different temperatures

Abstract

The possibility to study temperature fluctuations using URANS approach is studied. The results of numerical simulation of mixing processes for triple-jet sodium at different temperatures are presented. The processes were simulated using FlowVision software system and LMS model for turbulent heat transfer. The analysis and experiment data are compared. Validated was the possibility to determine the energy-carrying frequencies of temperature fluctuations using URANS approach and LMS model when mixing triple-jet sodium at different temperatures.

Keywords

• URANS approach
• temperature fluctuations
• fast neutron reactor
• power spectral density