摘要
根据某港口仓库实体尺寸建立几何模型,利用大涡模拟的方法对火源抬升不同高度后的温度流场、能见度和烟气层高度进行了数值模拟。模拟结果表明:火源抬升能降低仓库整体温度,仓库温度场分为两个区域,6 m以上空间温升随火源抬升增加,6 m以下空间温升随火源抬升减小;火源抬升能减缓烟气下降,提高下部空间能见度;考虑人员安全性和建筑安全性,确定了高架仓库内可燃物的最佳储放区域的下限为人员呼吸区高度。研究成果可以为港口仓库合理堆积货物提供参考依据。
The size of a port warehouse is followed to build a geometric model. The large eddy simulation approach is applies to the temperature flow field, visibility and the height of smoke layer while the fire resource is raised up to different heights. The simulation results show that the lifted fire resource decreases the integral warehouse temperature. The warehouse temperature field can be divided into two regions, the space at 6m and above where the temperature increases with the lifted fire source and the space below 6m where the temperature decreases with the lifted fire resource. The fire lifting can slow down the falling of smoke and make the lower space clear. To ensure the safety of personnel and buildings, the lower limit of the optimal combustible-storage area within an overhead warehouse is the height at which man breaths naturally. The research results will provide a reference for the reasonable storage of goods in port warehouses.
出处
《港工技术》
2017年第6期49-53,共5页
Port Engineering Technology
关键词
港口仓库
火源高度
烟气
最佳储放区域
port warehouse
height of fire resource
smoke
optimal storage area
