Numerical Simulation of the Reignition of Detonation by Reflected Shocks
Abstract
We study the diffraction and decay of a detonation wave which occurs when the detonation propagates past an increase in cross-sectional area in a rectangular detonation tube. The computations solve the time-dependent two- dimensional Euler equations using an operator split Flux-Corrected Transport algorithm in an Ar diluted stoichiometric H2/O2 mixture. Previous studies have shown that the initial effect is the decoupling of the reaction front from the shock and the formation of a decaying blast wave or bubble in the larger tube. The detonation may then continue to decay, or be reignited by reflection of the bubble off confining surfaces. In this paper we focus on reignition by shock reflection.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1992
- Accession Number
- ADA274755
Entities
People
- D. A. Jones
- E. S. Oran
- M. Sichel
Organizations
- Defence Science and Technology Group