基于氮气挤代的推进剂供应系统动态特性研究  

Dynamic Characteristics of Propellant Supply System Using Nitrogen

作　　者：王谦[1] 秦侃[1] 郝常乐 张安静 罗凯[1] 党建军[1] WANG Qian;QIN Kan;HAO Changle;ZHANG Anjing;LUO Kai;DANG Jianjun(School of Marine Science and Technology,Northwestern Polytechnical University,Xi’an 710072,China)

机构地区：[1]西北工业大学航海学院,陕西西安710072

出　　处：《水下无人系统学报》2023年第5期760-770,共11页Journal of Unmanned Undersea Systems

摘　　要：燃料供应系统能否将燃料按一定流量和比例快速输送至燃烧室进行燃烧,以供发动机做功是鱼雷启动过程的决定性因素。文中建立了适用于鱼雷能源供应系统的一维可压缩数值仿真程序,用于基于氮气挤代的典型鱼雷推进剂供应系统模型的动态特性仿真;通过经典文献及Fluent数值仿真方法对一维程序进行交互验证,一维仿真结果与两者相近,程序可用于对推进剂供应系统模型内部非定常流动状态的仿真。研究了活门直径、高压气舱压力及推进剂舱容积对推进剂供应系统模型动态响应特性的影响。结果表明,活门直径的增大可以缩短系统的平衡时间并减弱高压气舱压力变化对系统平衡时间的影响;在研究范围内,推进剂舱容积的增大,也会导致系统平衡时间的延长以及最终稳定压力的降低。Whether the fuel supply system can quickly supply the fuel to the combustion chamber with a certain mass flow rate and proportion for engine acting is a key factor during the torpedo start-up process.A one-dimensional compressible numerical simulation program suitable for torpedo energy supply systems was established to simulate the dynamic characteristics of typical torpedo propellant supply systems using nitrogen extrusion.The one-dimensional program was verified against the results from classical literature and Fluent numerical simulation method,and good agreement was achieved.The program could be used to simulate the unsteady flow within the propellant supply system model.The effects of valve diameter,high-pressure chamber pressure,and propellant chamber volume on the dynamic response characteristics of the propellant supply system model were then studied.The results show that with the increase in the valve diameter,the balance time of the system can be shortened,and the effect of the high-pressure chamber pressure on the system balance time is mitigated.Within the studied range,the increase in the propellant chamber volume will also lead to the extension of the system balance time and the eventual reduction of the stable pressure.

关 键 词：鱼雷 推进剂供应系统 氮气挤代 动态特性 

分 类 号：TJ630.32[兵器科学与技术—武器系统与运用工程]