Characterization of initiation and detonation by Lagrange gage techniques. Final report
The work on reactive flow Lagrange analysis (RFLA) was concerned with Lagrange particle velocity histories that exhibit double maxima similar to those recorded in RX26 and PBX9404. Conditions for particle velocity histories to exhibit extrema were formulated in terms of envelopes formed by Lagrange pressure histories. Lagrange analysis of the flow produced by the expansion of a detonation wave at a free surface was proposed to extend the determination of the release adiabat of detonation products from the Chapman-Jouguet (CJ) state to zero pressure. Solutions were constructed for steady-state nonideal detonation waves propagating in polytropic explosive with two reacting components. Overdriven detonation was treated both as a reactive discontinuity and as a Zeldovich-von Neumann-Doering (ZND) wave. The Rankine-Hugoniot (RH) jump conditions were used to calculate the first and second derivatives on the detonation velocity versus particle velocity Hugoniot at the CJ point. Methods of differential geometry were used to determine the conditions that allow the flow equations and RH boundary conditions to admit similarity solutions for overdriven detonation waves.
- Research Organization:
- SRI International, Menlo Park, CA (USA)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 5549143
- Report Number(s):
- UCRL-15557; ON: DE84002462
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
450100* -- Military Technology
Weaponry
& National Defense-- Chemical Explosions & Explosives
ANALYTICAL SOLUTION
DETONATION WAVES
DETONATIONS
DIFFERENTIAL EQUATIONS
EQUATIONS
EXPLOSIVES
LAGRANGE EQUATIONS
PARTIAL DIFFERENTIAL EQUATIONS
PARTICLES
SHOCK WAVES
VELOCITY