液体工质电热化学炮内弹道过程的本质是高速等离子体射流与推进剂工质的相互作用并推动弹丸运动的过程.基于对该过程物理机理的现有理解,本文提出了用于描述液体工质电热化学炮的两维多相流模型,主要包括:描述等离子体与液体工质气态产物运动的两维湍流模型和描述由等离子体射流卷吸引起的液体工质颗粒运动的颗粒轨道模型,根据上述模型进行了数值计算 Liquid working fluid thermochemistry The essence of the internal ballistic process is the interaction between high-velocity plasma jet and propellant working fluid and the projectile motion. Based on the current understanding of the physical mechanism of this process, The two-dimensional multiphase flow model of the thermoelectric gun consists of a two-dimensional turbulence model describing the movement of the gaseous products of the plasma and the liquid working fluid and the particle orbit model describing the particle movement of the liquid working fluid entrained by the plasma jet, According to the above model, numerical calculation is carried out