Journal of the Korean Society of Propulsion Engineers (한국추진공학회지)

The Korean Society of Propulsion Engineers (한국추진공학회)
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Three-dimensional Numerical Analysis of Detonation Wave Structures in a Square Tube

정사각관 내 데토네이션 파 구조의 삼차원 수치 해석

  • 조덕래 (부산대학교 대학원 항공우주공학과) ;
  • 원수희 (서울대학교 대학원 항공우주공학과) ;
  • 신재렬 (부산대학교 대학원 항공우주공학과) ;
  • 이수한 (부산대학교 대학원 항공우주공학과) ;
  • 최정열 (부산대학교 항공우주공학과)
  • Published : 2007.02.28
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Abstract

Three dimensional structures of detonation waves propagating in a square tube were investigated using a high resolution CFD code coupled with a conservation equation of reaction progress variable and an one-step irreversible reaction. The code were parallelized based on domain decomposition technique using MPI library. The computations were carried on an in-house Windows cluster with AMD processors. Three-dimensional unsteady analysis results in the smoked-foil records caused by the instabilities of the detonation waves, which showed the rectangular and diagonal modes of detonation instabilities depending on the initial condition of disturbances and the spinning detonation for case of small reaction constant.

반응 진행 변수 보존 방정식 및 1단계 비가역 반응과 연계된 고해상도 전산유체 코드를 이용하여 관 내부를 전파하는 데토네이션 파의 삼차원 구조를 관찰하였다. 코드는 영역 분할에 기초하여 MPI 라이브러리를 이용하여 병렬화하였으며, AMD 프로세서로 구성된 Windows 클러스터를 이용하여 실행하였다. 삼차원 비정상 해석으로부터 데토네이션 파의 불안정성으로 유발된 그을음 막 기록(smoked-foil record)을 얻을 수 있었으며, 이로부터 초기 교란 조건에 따라 직사각 모드나 대각 모드의 셀 구조와 함께 작은 반응 상수 조건에서는 회전 데토네이션 파를 관찰할 수 있었다.

Keywords

References

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