Numerical simulation of projectile accelerator using solid propellant

Hiroaki Miura, Akiko Matsuo

研究成果: Conference contribution

11 被引用数 (Scopus)

抄録

The simulations of ballistic range utilizing solid propellant and diaphragm to accelerate the projectile are carried out, using the lumped-parameter method and solid/gas two-phase fluid dynamics codes of both quasi-one-dimensional and two-dimensional axisymmetric methods. Compressible inviscid equations for mass, momentum and energy of gas phase and equations of solid phase used in the two-phase fluid dynamics codes contain the term of interphase properties such as mass of gas generated by solid decomposition, drag between gas and solid phases, and combustion heat. The calculations are started by igniting solid propellants, and terminated when a projectile reaches the accelerator muzzle. For solid propellants charged in the chamber, smokeless gunpowder (NY-500) is used. The simulated results by the different three methods are compared with experimental data for validation. The simulations by the lumped-parameter method roughly predict the experimental breech pressure history and velocity of the projectile, while the pressure wave propagation is not reproduced. The simulated acceleration profiles, the muzzle velocity of the projectile and the breech pressure histories by the quasi-one-dimensional calculation and the two-dimensional axisymmetric calculation are in good agreement with the experimental data. The two-dimensional axisymmetric simulation enables us to predict the behavior of pressure wave propagation in ballistic range.

本文言語English
ホスト出版物のタイトルCollection of Technical Papers - 44th AIAA Aerospace Sciences Meeting
ページ17355-17372
ページ数18
出版ステータスPublished - 2006 12 1
イベント44th AIAA Aerospace Sciences Meeting 2006 - Reno, NV, United States
継続期間: 2006 1 92006 1 12

出版物シリーズ

名前Collection of Technical Papers - 44th AIAA Aerospace Sciences Meeting
23

Other

Other44th AIAA Aerospace Sciences Meeting 2006
CountryUnited States
CityReno, NV
Period06/1/906/1/12

ASJC Scopus subject areas

  • Space and Planetary Science
  • Aerospace Engineering

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