Isochoric Burn, an Internally Consistent Method for the Reactant to Product Transformation in Reactive Flow
Mixture rules for partially reacted explosives differ amongst various models. For instance, JWL++ uses a partial pressure addition to compute an average zonal pressure, Ignition and Growth requires pressure equilibration and thermal equilibration of temperature dependent JWL EOSs, CHEETAH In Line RF also assumes temperature and pressure equilibration. It has been suggested in the past that a more realistic equilibration scheme should comprise isentropic pressure equilibration of the separate reacted and unreacted phases. This turns out not to be a proper path for equilibration. Rather, we find that the only internally consistent method is the evaluation of the equilibrium pressure that satisfies the particular conditions of reactant and product resulting from deflagration in a fixed volume.
- Research Organization:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 15013333
- Report Number(s):
- UCRL-JC-145292; TRN: US200802%%1109
- Resource Relation:
- Conference: 12th International Detonation Symposium, San Diego, CA, Aug 11 - Aug 16, 2002
- Country of Publication:
- United States
- Language:
- English
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