Shock Reflection Ignition
Work in progress.
Initial results can be found in Chapter 8 of my PhD Thesis.
Kellenberger, M., Ciccarelli, G., (2021) “Estimating experimental post-reflected shock conditions in a quasi-detonation propagation using a two-dimensional numerical model.” In progress.
Building on previous experimental findings, estimates the reflected conditions at the obstacle face in a quasi-detonation propagation are made. Numerical simulations are performed based on typical incident shock conditions seen experimentally and the critical conditions required for "strong" ignition are established. At the BR = 0.5 investigated, the key contributor to detonation transition was found to be the obstacle face reflection process. To further investigate this, numerical simulations of the shock interaction process at the upstream obstacle face were performed in a shock tube to ascertain the approximate reflected shock parameters leading to detonation initiation. This approach removes the complication associated with the trailing flame that is present in a fast-flame.