含能液滴间相互作用对着火、燃烧过程的影响

在控制再生式液体发射药火炮燃烧稳定性的背景下，采用挂滴装置和高速摄影系统开展了 ＨＡＮ基液体发射药 ＬＰ１８４６液滴组内部相互作用对着火、燃烧过程影响的研究。观测了液满间相互作用对它们所经历的四个特征过程的影响。定量测试液滴组平均着火延迟期、着火温度等特性参数与环境温度和液滴中心间距的关系。实验发现:在一定条件下，液滴组将出现聚并现象。最后．建立了一个工程简化模型，理论计算与实验数据吻合较好。这个工作对控制燃烧稳定性和抑制压力振荡有一定的指导意义。

EFFECTS OF INTERACTIONS BETWEEN ENERGETIC DROPLETS ON IGNITION AND COMBUSTION PROCESSES

A study of the effects of interactions between HAN-based liquid propellant LP 1846 drops on ignition, combustion processes has been developed with the goal of control combustion stability for regenerative liquid propellant gun. By use of a suspended drops apparatus and a high speed film camera, the effects of interactions between the drops on four characteristic proesses where they undergo are observed. Mean ignition delay time, ignition temperature and other parameters for LP 1846 drops group are measured. It is seen in experiments that coalescent phenomenon occurs for the drops group under some conditions, and the experimental phenomenon is discussed. Besides' a simplified engineering model is set up, the calculating results are in good agreement with the experimental data. The research results are important for control of combustion stability and suppression pressure oscillation in regenerative liquid propellant gun.