This study discussed characteristics of wave front in highly unstable region by 3-D detonation analysis using 3-D Euler equation which applied one-step chemical reaction to minimize numerical effort and time consumption. Additionally, by comparing 2-D & 3-D analysis results, similarity and difference of two results were verified. Also, by PSD analysis, understanding of characteristics for different pre-exponential factor k and unstable area was done, and schlieren image and overlaid image of 3-D analysis results were compared to discuss irregularity due to interference of 3-D wave front.
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