기체 상 데토네이션 셀 구조 해석을 위한 수치적 요구 조건

NUMERICAL REQUIREMENTS FOR THE SIMULATION OF DETONATION CELL STRUCTURES

  • 최정열 (부산대학교 항공우주공학과) ;
  • 조덕래 (부산대학교 대학원 항공우주공학과) ;
  • 이수한 (부산대학교 대학원 항공우주공학과)
  • 발행 : 2007.04.06

초록

Present study examines the numerical issues of cell structure simulation for various regimes of detonation phenomena ranging from weakly unstable to highly unstable detonations. Inviscid fluid dynamics equations with $variable-{\gamma}$ formulation and one-step Arrhenius reaction model are solved by a MUSCL-type TVD scheme and 4th order accurate Runge-Kutta time integration scheme. A series of numerical studies are carried out for the different regimes of the detonation phenomena to investigate the computational requirements for the simulation of the detonation wave cell structure by varying the reaction constants and grid resolutions. The computational results are investigated by comparing the solution of steady ZND structure to draw out the minimum grid resolutions and the size of the computational domain for the capturing cell structures of the different regimes of the detonation phenomena.

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