Study of Air Ingress Across the Duct During the Accident Conditions.

摘要

Particle Image Velocimetry (PIV) Measurement of Multiphase during Air Ingress: We will measure the temperature distribution and concentration profile of the two species will be investigated using state-of-the-art particle image velocimetry (PIV) and laser induced fluorescence (LIF) techniques. Experiments will be performed in a specially designed small test facility that will allow us to measure the velocity and temperature during stratifications and inflow/outflow behavior through the broken duct. Hot-wire anemometers will also be inserted into the duct and the tanks to obtain local velocity values. These experiments will provide new full-field data of temperature, concentration and velocity components with a high degree of spatial and temporal resolution. The data will allow us to better understand the fundamental flow features and develop improved models. 2) Computational Fluid Dynamics (CFD) Analysis of Air Ingress Phenomena: We will construct advanced CFD models that incorporate the multiple physical phenomena associated with air ingress including as molecular