Dynamic Simulation of Contaminated Air Intrusion by Person Entering

Abstract:

In this paper, the dynamic process of contaminated air intruding from the corridor into the isolation room was studied and the air intrusion volume was determined. The Reynolds average NavierStrokes(RANS) model was applied for the numerical simulation, and the movement of a door and a person in the simulation was achieved through the dynamic mesh techniques. The results show that the air intrusion process induced by the movement of the door and the person can be divided into four stages, and with longer entrance time the air intrusion volume would increase significantly.

Key words:numerical simulation; dynamic meshes; ventilation safety; main control room; nuclear power plant