基于活塞流的脉冲式喷水推进技术分析  

Analysis of Pulse Water Jet Propulsion Technology Based on Plug Flow Principle

作　　者：杜一骄 王育才[1] 蒋彬[1] 王致强 

机构地区：[1]西北工业大学航海学院,陕西西安710072

出　　处：《鱼雷技术》2015年第3期202-207,共6页Torpedo Technology

摘　　要：为了避免螺旋桨因速度过快而产生的空化问题,高速水面舰艇倾向于使用喷水推进这一新型推进方式。对于喷水推进在无人水下航行器上的应用,受到高温高压燃气推动活塞做功这一热功转换形式的启发,在活塞流的基础上提出一种结构简单、成本低廉的新型脉冲式喷水推进系统,初步建立了该喷水推进的数学模型,在此基础上进行了气体膨胀过程的理论计算和数值仿真计算,并通过计算得到的数据对该模型参数作了进一步的优化,得到更加贴近实际过程的推力和总冲量等相关参数。通过分析计算,验证了该模型的合理性,为后续喷水推进技术研究提供参考。To avoid cavitation of a propeller at high rotational velocity, high speed surface ships incline to use water jet propulsion systems. This study is inspired by the conversion of heat into power in high temperature and high pressure gas driving a piston. According to the principles of plug flows, a novel pulse water jet propulsion system is presented with low costs and simple construction, and the model of the water jet propulsion system is established. According to this model, theoretical calculations and numerical simulations are conducted in the expansion process. With the simulation results, the parameters of the model are optimized, thus the relevant parameters which are closer to real working conditions, such as propulsive force and total impulse, are obtained. Calculation results verify the reasonability of the proposed model.

关 键 词：无人水下航行器 活塞流 喷水推进 脉冲式 

分 类 号：TJ630.32[兵器科学与技术—武器系统与运用工程]