空度在风诱导条件下舱室外表面压力分布模拟计算中的应用

在船舶火灾过程中，空气流动所引起舱室周围的压力的变化在决定外部烟气侵入速率及舱室内部烟气流动方面起着重要作用．本文在引入全空度概念的基础上，建立了计算舱室外表面压力分布的数学物理模型Ｆ３Ｄ，计算了在所选风速和风向条件下，代表模型舱室的阻挡物表面的压力分布，计算的结果与Ｋａｎｄｏｌａ实验数据进行了比较，两者相符很好

Application of Porosity in Calculations of the Wind induced Pressure Distribution on a Model Cabin

During the process of a ship fire, the effect of wind is very important. The wind flow, especially for its velocity and direction,sets up pressure variations around the cabin which play an important role in determining the smoke spreading within the cabin and the rate of ingress of external smoke. The calculations are performed using Porosity and F3D code. Data from experiments are compared with those from the simulations. The calculation results are found to be in excellent qualitative and good qualitative agreement with the experimental data.