人员进门过程中污染气体侵入数值模拟

Dynamic Simulation of Contaminated Air Intrusion by Person Entering

摘要:

研究了人员进门过程中污染气体从走廊侵入到隔离室的动态过程和侵入量.数值计算采用了雷诺时均NS模型，通过动网格技术实现门和人员的运动，并利用示踪气体监测外界空气的侵入过程.结果表明:侵入过程可以分为4个阶段，进门时间增加会显著增加内侵入空气体积.

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.