摘要
为了提高船舶运行速度,降低船舶运行噪声,研究了基于水中放电技术的机理,并研制成一种新式船舶推进器——水射流等离子弧推进器.该推进器采用同轴式环棒电极结构,利用两电极间介质击穿过程中产生的等离子体汽泡的压力来推进航模,摒弃了螺旋桨及其他机械部件,降低了船舶运行噪声,由于采用了直线推进技术,大大增加了船舶的航行速度.在参考传统的水中脉冲放电基础上,提出水中稳态放电的设计思想,建立起模型速度测量系统,进行了船模推进器的水上实验,得到了有关水射流等离子弧的推进速度与电极结构、推进器供水量以及外施电压之间的关系.实验及理论分析证明,放电电极间电压及供水量对等离子弧的推进作用有重要影响.
To speed up the ship and lower its noise, a novel ship thruster, water jet plasma arc thruster, was developed based on the discharge principles in water. The coaxial ring-bar electrodes were adopted in the thruster. The ship model was propelled by the pressure from the expansion of plasma bubble which was produced when the working fluid between the electrodes was broken down. Since the screw propeller and other mechanical components are not used in the model, it has the advantage of low noise, and for the adoption of the linear motion the velocity of the ship is also increased. Based on the principle of traditional pulse discharge in water, the stable discharge in water was proposed and the thrusting system of the ship model was established. With the experimental system, the relationship between the velocity of the water jet plasma arc and the structure of the electrodes, water supply system were acquired. It is proved that the voltage between the electrodes and the quantity of the water supply play an important role in the thrusting effect.
出处
《沈阳工业大学学报》
EI
CAS
2008年第5期498-503,共6页
Journal of Shenyang University of Technology
基金
国家自然科学基金资助项目(50677039)
国家自然科学基金重点资助项目(50537010)
关键词
稳态等离子
水中放电
电弧
汽泡
推进效应
stable plasma
discharge in water
plasma arc
bubble
thrusting effect
