Abstract
The transition from regular reflection (RR) to Mach reflection (MR) as a plane shock wave diffracts around a triangular mountain of 45° inclination is analysed in this paper, both by optical measurement in a shock tube and by numerical simulation the numerical method developed by Li Yingfan[1] is of the FLIC type with triangular mesh. The dependence of the critical transition point Lk ofRR→MR on shock Mach numberM i is analyzed and the variations of the incidence angle ω i of the impinging shock and the reflection angle ω r with the distanceL * are investigated. Our experimental and numerical results agree well with the theoretical results of Iton and Italya.
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Wensheng, H., Keqi, L., Yongsheng, H. et al. Mach reflection of a plane shock wave passing a mountain of 45° inclination. Acta Mech Sinica 2, 8–17 (1986). https://doi.org/10.1007/BF02487876
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DOI: https://doi.org/10.1007/BF02487876