火箭推进2018，Vol.44Issue(3)：54-61,8.
凝胶推进剂模拟液静电雾化行为规律研究
Study on behavior rules of electrostatic atomization for gelled propellant simulant
摘要
Abstract
In view of the atomization difficulty of gelled propellant, electrostatic injection technology was introduced to atomize gelled propellant. The hydrogel simulant was taken as a medium to investigate the feasibility and experimental conditions of the electrostatic atomization technology. When the collection distance is 2~5 cm and the liquid flow rate is and 10~30 μL/h, the gelled simulant can achieve steady atomization. The diameter of collected droplets is less than 100 μm and the jet-spread angle distribution is 8°~36°. Meanwhile, the diameter of atomization droplets and the jet-spread angle decrease with the increase of collection distance and the decrease of nozzle diameter. Under the same conditions, the lower the viscosity of the gel is, the smaller the jet-spread angle and the diameter of atomization droplet be-come. On this basis, the feasibility of multi-nozzle structure to atomize the gelled propellant and the dis- tribution of atomization area were analyzed for the problem of small thrust from a single nozzle. The re-sults show that the No.2 gelled simulant used in the multi-nozzle structure can obtain a good distribution of atomization area, which is more suitable for gelled propulsion system.关键词
凝胶推进剂/静电雾化/雾化液滴/散射角Key words
gelled propellant/electrostatic atomization/atomization droplet/jet-spread angle分类
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吴德志,孙瑜,王勇,罗毅辉,赵扬,陈沁楠,王凌云,洪流,孙道恒..凝胶推进剂模拟液静电雾化行为规律研究[J].火箭推进,2018,44(3):54-61,8.基金项目
国防科技重点实验室基金项目(61427040203162704004) （61427040203162704004）
