Application of CTVD Algorithm in Interior Ballistics of Metal Storm Weapon

Aiming at the complicated characteristics of interior ballistic process of metal storm weapon,the one-dimensional two-phase flow model was established,and the CTVD algorithm with high efficiency was also introduced for numerical simulation.The interior ballistic process of metal storm weapon under strong coupling firing,weak coupling firing,and non-coupling firing were analyzed in detail based on the calculation results,and the variation courses of breed pressure and the bullet velocity with time were also obtained.The results show that the higher the firing frequency,the higher the maximum bore pressure and the lower the muzzle velocity of projectile.Under the conditions of ignoring the coupling effect,the nearer the distance between loading position of projectile and the rear end,the greater the muzzle velocity of projectile.The maximum bore pressure is only affected by dynamic pressure and is irrelevant to loading position.