### Abstract

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.

Original language | English |
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Title of host publication | Collection of Technical Papers - 44th AIAA Aerospace Sciences Meeting |

Pages | 17355-17372 |

Number of pages | 18 |

Volume | 23 |

Publication status | Published - 2006 |

Event | 44th AIAA Aerospace Sciences Meeting 2006 - Reno, NV, United States Duration: 2006 Jan 9 → 2006 Jan 12 |

### Other

Other | 44th AIAA Aerospace Sciences Meeting 2006 |
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Country | United States |

City | Reno, NV |

Period | 06/1/9 → 06/1/12 |

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### ASJC Scopus subject areas

- Space and Planetary Science
- Aerospace Engineering

### Cite this

*Collection of Technical Papers - 44th AIAA Aerospace Sciences Meeting*(Vol. 23, pp. 17355-17372)

**Numerical simulation of projectile accelerator using solid propellant.** / Miura, Hiroaki; Matsuo, Akiko.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

*Collection of Technical Papers - 44th AIAA Aerospace Sciences Meeting.*vol. 23, pp. 17355-17372, 44th AIAA Aerospace Sciences Meeting 2006, Reno, NV, United States, 06/1/9.

}

TY - GEN

T1 - Numerical simulation of projectile accelerator using solid propellant

AU - Miura, Hiroaki

AU - Matsuo, Akiko

PY - 2006

Y1 - 2006

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=34250746001&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=34250746001&partnerID=8YFLogxK

M3 - Conference contribution

SN - 1563478072

SN - 9781563478079

VL - 23

SP - 17355

EP - 17372

BT - Collection of Technical Papers - 44th AIAA Aerospace Sciences Meeting

ER -