弧厚不均火药在内弹道计算中的处理方法

根据所用粒状药内外弧厚不同的特点，推导了该粒状药二项式与三项式的形状函数，并进行了比较，建立了粒状药与管状药组成的混合装药的多相流内弹道理论模型，编制工程实用的软件系统，数值预报射击过程膛内物理量变化的详细结果，该研究结果对于指导装药设计，弹丸设计与身管设计都具有重要的理论参考价值与工程实际意义。

APPLICATION OF NON UNIFORM BURNABLE THICKENSS GRAIN PROPELLANTS TO INTERIOR BALLISTIC NUMERICAL SIMULATION

According to the characteristic of non uniform burnable thickn ess grain propellant, the grain form functions of two elements and three elements polynome are derived and compared. The multi phase flow interior ballistic model for grain and stick propellants are established, a practical engineering software system is completed. The detail results in the interior cycle are forcasted. The computed results are of great reference value and engineering significance to charge design, projectile design even to gun design.