Shock Waves

, Volume 14, Issue 5, pp 413–420

Uncertainty analysis of deflagration-to-detonation run-up distance

Original Article

DOI: 10.1007/s00193-005-0284-3

Cite this article as:
Li, J., Lai, W.H., Chung, K. et al. Shock Waves (2005) 14: 413. doi:10.1007/s00193-005-0284-3

Abstract

Three methods were adopted to estimate the deflagration-to-detonation run-up distance in a smooth tube, which comprise (1) the measurement of the propagation speed of pressure or combustion waves compared with the C–J detonation speed, (2) the time of the onset of detonation by the emission of visible light and the trajectory of pressure wave or combustion waves, and (3) the trajectory intersection with the presence of retonation wave. A nonstationary cross-correlation technique was applied to evaluate the uncertainty in estimating the run-up distance. Evaluation of the pressure wave (pressure wave speed or the pressure wave trajectory) appears to be more suitable to determine the deflagration-to-detonation run-up distance.

Keywords

DDT run-up distance Uncertainty Nonstationary cross-correlation 

Copyright information

© Springer-Verlag 2005

Authors and Affiliations

  1. 1.Department of Aeronautical and Astronautical EngineeringNational Cheng Kung UniversityRepublic of China
  2. 2.Aerospace Science and Technology Research CenterNational Cheng Kung UniversityRepublic of China
  3. 3.Aerodynamics Research Center, Mechanical and Aerospace Engineering DepartmentUniversity of Texas at ArlingtonUSA

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