Comparing small-scale detonation simulation to experimental data and multi-dimensional initiation sensitivity study

We are interested in modeling exploding foil initiator (EFI) detonators to help with design timelines and understanding the fundamental science of detonators. We will discuss efforts to model small-scale detonations in the absence of calibration data that take into account the ignition and growth in PETN sub-centimeter pellets. Several reaction rate models along with parameter studies were performed to show variation in the breakout time and wave shape at the end of the pellet using the hydrocode FLAG. Since 1D initiation does not wholly describe the initiation in these small-scale detonations of interest, we will explore the effect of multi-dimensional ignition on the outcome. We will show several comparisons of simulation data to experimental data and discuss the results.