Energetics of Late Chemical Reactions in Nonideal Underwater Detonations: Phase 1, Preliminary Theoretical Model Development.

This report describes a preliminary model of kinetic and thermo-hydrodynamic processes that define the nonideal detonation of a totally nonideal explosive an APAl mixture. Section 2 presents a thermo-hydrodynamic description of reactive explosive compositions containing aluminum and, in particular, a description of the nonideal detonation process in ammonium perchloratealuminum and CHNO explosiveAl compositions. The specific energy relationships for these reacting compositions were formulated with each component governed by its own equations of state. Mie-Gruneisen equations of state are derived, including the temperature, and used for the solid components, but the detonation products are treated as a polytropic fluid. Equations of state for steady-state detonation in AP and the prototype model for nonideal detonation in CHNOAl composition are also presented. In Section 3 we present a theory describing the kinetic processes by which AlAl2O3AP products react. Key here is the application of the phenomenon of anomalously high ionic conduction, which are exhibited by the beta-aluminas, through tunnels through which cations can move freely. This provides a plausible explanation of events in Alexplosive reactions. Statistical mechanical concepts are employed to provide reaction rate equations for Al and AP. The theoretical results of Sections 2 and 3 provides a preliminary physical model based on first principles, which will be integrated into a compressible flow code in the next phase of this work, which is to improve, extend, and validate the model.