雷弹发射系统应急发射状态下发射阀内流场分析  

Analysis on Flow Field in Launch Valve of Submarine′s Torpedo and Missile Launch System under Emergency Launch Condition

作　　者：王贤明[1] 段浩[1] 王云[1] 

机构地区：[1]中国船舶重工集团公司第705研究所昆明分部,云南昆明650118

出　　处：《鱼雷技术》2016年第3期235-240,共6页Torpedo Technology

摘　　要：发射阀是潜艇雷弹发射系统的重要部件,其主要作用是准确控制气体的流量以及压力,从而保证发射过程的精确性。文中采用商用CFD软件,建立了应急发射状态下发射阀内流场的数学模型,使用剪切压力传输(SST)k-?模型并结合动网格技术对该模型进行了数值仿真。仿真结果详细直观地描述了发射阀内流场各个阶段的瞬态压力、瞬态速度分布。所获得的仿真结果可为发射阀流道的优化设计提供理论依据,同时还可为研究潜艇发射系统的振动与气动噪声提供参考。The purpose of launch valve in submarine′s torpedo and missile launch system is to control the flow and pressure of gas, so as to ensure the accuracy of launching process. In this paper, a mathematical model of flow field in the launch valve under emergency launch condition is established with commercial CFD software, and the model is simulated by means of the shear stress transmission（SST） k-？ model and dynamic mesh technique. Simulation results show detailed and intuitive distributions of transient pressure and transient velocity of the interior flow field at all stages. These results can provide a theoretical basis for optimization design of channels of the launch valve, and can also provide a reference for research of vibration and aerodynamic noise of the submarine launch system.

关 键 词：雷弹发射系统 发射阀 流场仿真 动网格 应急发射 气动噪声 

分 类 号：TJ635[兵器科学与技术—武器系统与运用工程] O352[理学—流体力学]