ADN/water‐based gel propellant is a new high‐energy, green, non‐toxic propellant, so it has good application prospects in the future aerospace industry. In order to study the spray characteristics of ADN/water‐based gel propellant, two‐strand impinging nozzles were used to carry out experiments. The spray images were observed by high‐speed photography, and the effects of different injection pressure, nozzle diameter, and impact angle on spray configuration, spray cone angle and breakup length of liquid film were studied. The results show that the breakup length of liquid film decreased with the increase in injection pressure and impact angle, and increased with the increase in nozzle diameter. The spray cone angle increased with the increase in injection pressure, nozzle diameter, and impact angle. And the effects of spray pressure and nozzle diameter on spray process were obvious. The distribution of propellant spray in space was clarified under these conditions and it would provide reference data for the structural design of the combustion chamber of the engine.

中文翻译：

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ADN /水性凝胶推进剂撞击喷射器喷雾特性的实验研究

ADN /水基凝胶推进剂是一种新型的高能，绿色，无毒推进剂，因此在未来的航空航天工业中具有良好的应用前景。为了研究ADN /水基凝胶推进剂的喷雾特性，使用了双链撞击喷嘴进行了实验。通过高速摄影观察喷雾图像，研究了不同注射压力，喷嘴直径和冲击角对喷雾形态，喷雾锥角和液膜破裂长度的影响。结果表明，液膜的破裂长度随注射压力和冲击角的增加而减小，随喷嘴直径的增加而增加。喷射锥角随着注射压力，喷嘴直径和冲击角的增加而增加。喷雾压力和喷嘴直径对喷雾过程的影响是明显的。在这些条件下澄清了推进剂喷雾在空间中的分布，这将为发动机燃烧室的结构设计提供参考数据。