Propellants Explosives Pyrotechnics, Vol.45, No.8, 1275-1280, 2020
Prediction of PBX-9502 Pop-Plots at Different Temperatures, Using the Reactive Flow Model TDRR
In Figure 3 of [1] Gustavsen et al. show Pop-plots of the explosive PBX-9502 at six initial temperatures from -196 degrees C to 250 degrees C. For this range of temperature (450 degrees C) the run distance (or reaction rate) changes by a factor of 40. We use here our TDRR reactive flow model to predict those six Pop-plots. The reaction rate of TDRR increases with the temperature of the reactant, which gives it a good chance to succeed in predicting the experimental results. And indeed our predictions of the six Pop-plots are all within the experimental error brackets.
Keywords:Shock initiation;Run to detonation;Pop-plot;Reactive flow modeling;TDRR reactive flow model;Initial temperature dependence