Journal of the Korea Institute of Military Science and Technology (한국군사과학기술학회지)

The Korea Institute of Military Science and Technology (한국군사과학기술학회)
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Numerical Studies on the Deceleration Characteristics of Supersonic Projectile According to the Test Condition Parameters in a Soft Recovery System

저감속 회수장비 시험조건에 따른 초음속 시험탄 감속특성에 대한 수치해석적 연구

  • Song, Minsup (The 4th Research and Development Institute, Agency for Defense Development) ;
  • Kim, Jaehoon (School of Mechanical Engineering, Chung Nam National University)
  • 송민섭 (국방과학연구소 제4기술연구본부) ;
  • 김재훈 (충남대학교 기계공학과)
  • Received : 2020.02.18
  • Accepted : 2020.08.14
  • Published : 2020.10.05
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Abstract

Numerical analyses were performed using a one-dimensional Euler equation and Godunov Harten-Lax-Van Leer(HLL) Riemann solver in order to study the deceleration characteristics of a 155 mm projectile in a soft recovery system. The soft recovery system consisting of a series of pressure tubes is a system that decelerates the test projectile fired at supersonic speed using a high-pressure gas and filled water inside. Therefore, depending on the gas pressure and the amount of water filling, the deceleration and the exit velocity of the test projectile inside the pressure tube are determined. In this paper, the deceleration characteristics of the test projectile were analyzed according to the gas pressure and water mass filled.

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References

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