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中文摘要：
基于湍流大涡模型,建立了细水雾与油池火相互作用的数值模型.研究表明,数值模拟结果可以反映出细水雾加入前温度缓慢上升以及加入细水雾使温度下降的趋势,平均误差在8%以内,说明数值模拟和实验有较好的吻合;雾滴直径和操作压力是细水雾灭火效能的主要影响因素,提高操作压力会加强细水雾对火羽流的热烟气降温效果,使用200μm粒径的细水雾效果最好,能保证足够的穿透力和滞留时间;火焰冷却、衰减辐射及降低火焰区氧气浓度等在灭火初期起到很强的作用.
英文摘要：
A numerical model based on Large Eddy Simulation（LES） for turbulence was developed to simulate the interaction of water mist and pool fire.Parametric studies were performed to determine the effects of droplet diameter and operation pressure on water mist performance.Experimentation shows that the average relative error of the model is 8%.Flame cooling,attenuation of radiation and reduce the flame and oxygen concentration in the fire to play a strong role in the initial fire suppression.High operating pressure help to put out the fire,and 200 μm diameter-droplets can ensure demanded penetrating and retention time.
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