警用脉冲防暴水炮气液两相射流的数值研究  

Numerical Study of Gas-liquid Water Jet of Pulsed Anti-riots Water Cannon

作　　者：战仁军[1] 汪送[1,2] 敖云晖 

机构地区：[1]武警工程大学装备运输系,西安710086 [2]空军工程大学工程学院,西安710038

出　　处：《机械科学与技术》2012年第1期141-145,共5页Mechanical Science and Technology for Aerospace Engineering

基　　金：国家自然科学基金项目(50876113)资助

摘　　要：为优化装备设计,奠定气液射流雾化研究的基础,对脉冲防暴水炮气液两相射流进行了实验研究。采用4种模拟方案对实验工况进行数值模拟,得到大涡模拟方法耦合二维非稳态隐式的VOF方法可以对高速气液两相射流进行较好的描述,所得结果与实验结果吻合较好。展开变动力参数和结构参数的数值模拟,结果表明:初始压力和初始水量对水炮性能影响较为明显,较短的炮管长度可以促进射流雾化,较长的炮管长度可以增加最大有效射程。To optimize the design of equipment and lay the foundation for atomizing the gas-liquid water jet of pulsed anti-riots water cannon,we did the experimental study of it and then use four kinds of simulation scheme to simulate the experimental conditions,thus obtaining the large eddy simulation method coupled with the 2-D unsteady implicit VOF model,which can give a better description of the high-speed gas-liquid water jet.The simulation results agree well with the experimental results.We also perform the simulation of changing numerical parameters and structural parameters;the simulation results show that： 1） the initial pressure and initial water weight of the gas-liquid water jet exert obvious influences on the performance of the water cannon;2） the shorter the pipe of the water cannon,the more fully the water jet is atomized;the longer the pipe,the more effectively the water cannon jets.

关 键 词：脉冲防暴水炮 气液两相射流 大涡模拟 实验研究 优化设计 

分 类 号：TV131[水利工程—水力学及河流动力学]