基于“准室外空间”的超大空间烟流数值模拟

针对超大空间建筑体积均大于一般大空间的特点,引入"准室外空间"的概念,并以成都海洋馆为例数值模拟自然排烟模式下超大空间的烟流规律。结果表明,超大空间体蓄烟纳热能力强,烟气分层明显,烟气层一直维持在人员活动面之上,人员疏散过程中所处环境与室外条件类似,达到了"准室外空间"的要求。

Numerical simulation on smoke exhaust of huge-scale space building based on concept of outdoor-like space

A new concept named outdoor-like space was introduced to resolve fire safety design of huge-scale space building.Taking Chengdu aquarium as an example,the smoke flow characterization under nature smoke exhaust mode in the huge-scale space was numerically simulated.The research shows that the huge-scale space has a strongly ability of storing smoke and heat,and the smoke layer is always clear and above the occupancy's action surface.The whole process of evacuation almost is the same with that in the outdoor ...