针对再生式液体发射药火炮(RLPG)内弹道过程中非稳态喷雾燃烧流动问题，建立了数学模型，给出了具体的计算方法。
Aimed at nonsteady spray combustion flow problems of regenerative liquid propellant gun (RLPG) in process of interior ballistic, mathematical model was established, and numerical method was derived.
通过与常规弹道作比较，指出了SPETCG内弹道过程与常规弹道不同的特点，为SPETCG的弹道设计提供了理论依据。
The calculations show that there are some different characters between SPETCG interior ballistic process and conventional process, and it provides theoretical evidence for the SPETCG ballistic design.
利用该模型对电热化学发射内弹道过程进行了数值模拟，并将模拟结果与实验数据进行了分析比较，结果表明模拟结果与实验数据基本吻合。
The launching process in interior ballistics is numerically simulated, the comparison of simulation results with experimental ones indicates that the simulation agreed well with the experiments.
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