基于CFD模拟的大跨度厂房通风气流组织优化

Numerical Simulation of Natural Ventilation and Scheme Determination for a Closed Large-span Industrial Building

本文以大跨度封闭煤场的自然通风为例,从提高气流组织效果的角度进行了全方位数值模拟,预测了夏季设计气象条件下大跨度厂房的不同进出风位置、几何尺寸等形成的厂房速度场,温度场和浓度场。研究结果表明,不同通风口位置,风口间距,通风口高度对以风压为主的建筑物自然通风影响程度显著不同,并提出了大跨度封闭自然通风气流组织优化设计方案。

For the purpose of improving the effect of air distribution, a numerical simulation on the velocity, temperature and concentration field surrounding a closed large-span industrial building, under summer design condition was conducted. Meanwhile, the influence of various position and size of window openings on the air movement was predicted. The results show that the position of window openings, distance between two inlets and the height of window are important parameters determining the effectiveness of wind-driven natural ventilation in buildings.