Analysis of shock wave acceleration from normal detonation reflection
Normal detonation reflection generates a shock wave that exhibits complicated dynamics as it propagates through the incident detonation and post-detonation flow. Ideal models have historically neglected the influence of a finite detonation thickness on the reflected shock due to its small size relative to laboratory scales. However, one-dimensional numerical simulations show that the reflected shock accelerates to a large shock speed not predicted by ideal theory as it propagates through the incident detonation. Analysis with a derived shock-change equation identifies the principal role of the highly nonuniform upstream flow on producing the large shock acceleration. Simulations of detonation reflection show how a finite detonation thickness affects the entire trajectory of the reflected shock.
Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. This paper is based on work that was presented at the 28th International Colloquium on the Dynamics of Explosions and Reactive Systems (ICDERS), Naples, Italy, June 19-24, 2022. This work was sponsored by the Office of Naval Research (ONR), under Grant Number N00014-22-1-2141. The views and conclusions contained herein are those of the authors only and should not be interpreted as representing those of ONR, the US Navy or the US Government.
Accepted Version - Detonation_Reflection_ShockWaves_2023.pdf