Through the computation model,general CFD software PHOENICS is used to simulate the gas efflux speed and concentration fields.The principle laws of the indoor leakage gas spreading are obtained.

• 通过建立数值计算模型,采用通用的CFD软件PHOENICS对泄漏气体射流扩散后形成的速度场与浓度场进行了模拟计算,得出了泄漏气体在室内扩散分布的一般特征。