侧向风对航母甲板油池火灾影响分析  

Analysis of effect of lateral wind on oil pool fire on aircraft carrier deck

作　　者：朱旭程[1] 袁书生[1] 曾亮[1] Zhu Xucheng;Yuan Shusheng;Zeng Liang(Department of Aerocraft Engineering,Naval Aeronautical University,Yantai 264001,China)

机构地区：[1]海军航空工程学院飞行器工程系,山东烟台264001

出　　处：《实验技术与管理》2018年第4期48-53,共6页Experimental Technology and Management

基　　金：中国工程物理研究院安全弹药研发中心开放基金项目(RMC2015A01)

摘　　要：采用低速气流运动控制方程组和湍流燃烧大涡模拟方法,研究了不同侧向风情况下航母甲板油池火灾的蔓延与烟气运动规律,分析得到了甲板上方火灾烟气压强、温度与热流强度随侧向风速的变化情况。通过缩比模型和风洞实验数据对计算结果进行了验证。结果表明,航母甲板火灾释热率与风速大小成非单调变化关系,在侧向风、舰岛和运动火羽流的综合作用下,在甲板上方形成正压和负压间隔交替的气流区域,侧向风速度越大,正压和负压区之间压差越大。研究结果对于航母甲板灭火技术和舰载机安全性分析有一定参考价值。By adopting a set of motion control equations for low velocity airflow and the large eddy simulation method for turbulent combustion,the spread of the oil pool fire and the smoke movement on the aircraft carrier deck under the different lateral wind are studied,and the variation of the smoke pressure,temperature and heat flux with the lateral wind velocity above the deck is analyzed.The results are verified by the shrinkage model and the wind tunnel experimental data.The results show that the relationship between the fire heat release rate of the aircraft carrier deck and the wind velocity is non-monotonic,an airflow area is formed with the intervals of the positive pressure and negative pressure over the deck under the comprehensive effect of the lateral wind,ship-island and movement of the plume,and the greater the lateral wind velocity,the greater the pressure difference between the positive pressure area and the negative pressure area.The research results have a certain reference value for the fire extinguishing technology and the shipboard aircrafts safety analysis.

关 键 词：航空母舰 大涡模拟 油池火灾 甲板风 

分 类 号：U674.771[交通运输工程—船舶及航道工程]