舰船弹药舱喷头压强对降温效能的影响  

Influence of Nozzle Pressure of Ship Magazine upon Cooling Efficiency

作　　者：李玉峰[1] 熊言义 张宏[1] LI Yu-feng;XIONG Yan-yi;ZHANG Hong(The 713 Research Institute of CSIC, Zhengzhou 450015, China)

机构地区：[1]中国船舶重工集团公司第七一三研究所,郑州450015

出　　处：《船海工程》2018年第6期58-62,共5页Ship & Ocean Engineering

基　　金：国家部委基金资助项目

摘　　要：为研究喷头初始压强对舰船弹药库喷淋降温效能的影响,用Fluent软件对火箭发动机意外点火后舱室内的流场进行数值模拟仿真,计算得到舱室内流场的分布;基于DPM离散相喷雾降温模型耦合计算,得到不同初始喷头压强下特征位置的温度和水蒸气质量分数等反映降温效能的实时数据;同时用试验方法对不同压强下的喷头性能进行测试,测量不同压强下的流量、雾滴粒径分布和速度,得到喷头压强对降温效能影响的变化规律,分析初始压强影响降温效能的原因,为舰船弹药舱喷头压力应用设计提供理论依据。In order to study the effect of nozzle pressure of ship magazine on cooling efficiency,the exhaust gas flow fields in magazine were simulated in the case of accidental ignition of the rocket motor with Fluent.The spray cooling process was simulated by DPM model to obtain the real-time data reflecting cooling efficiency under different nozzle pressure,such as temperature at specified position and steam quality score etc.Experiments were carried under different nozzle pressure to test floe rate,droplet intensity and velocity distribution.The effect of nozzle pressure on cooling efficiency and its reason were studied.It′s helpful to the design of the nozzle pressure in ship magazine.

关 键 词：喷头压强 降温效能 弹药舱 

分 类 号：U674.7[交通运输工程—船舶及航道工程]