|Table of Contents|

Study on behavior rules of electrostatic atomization for gelled propellant simulant(PDF)

《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V]

Issue:
2018年03期
Page:
54-61
Research Field:
测控与试验
Publishing date:

Info

Title:
Study on behavior rules of electrostatic atomization for gelled propellant simulant
Author(s):
WU Dezhi1;  SUN Yu1;  WANG Yong2;  LUO Yihui1;  ZHAO Yang1;  CHEN Qinnan1;  WANG Lingyun1;  HONG Liu2;  SUN Daoheng1
1. School of Aerospace Engineering, Xiamen University, Xiamen 361102, China;2. Science and Technology on Liquid Rocket Engine Laboratory, Xi'an Aerospace Propulsion Institute, Xi'an 710100, China
Keywords:
gelled propellant;  electrostatic atomization;  atomization droplet;  jet-spread angle
PACS:
V439-34
DOI:
-
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 become. On this basis, the feasibility of multi-nozzle structure to atomize the gelled propellant and the distribution of atomization area were analyzed for the problem of small thrust from a single nozzle. The results 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.

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Last Update: 2018-06-30