Multidimensional DDT modeling of energetic materials
- Energetic and Multiphase Processes Dept. and Computational Shock Physics Dept., Sandia National Laboratories, Albuquerque, New Mexico, 87185 (United States)
A nonequilibrium continuum mixture model has been incorporated into the CTH shock physics code to describe deflagration-to-detonation transition in granular energetic materials. This approach treats multiple thermodynamic and mechanics fields including the effects of relative material motion, rate-dependent compaction and interphase exchange of mass, momentum and energy. A finite volume description is formulated and internal state variables are solved using an operator-splitting method. Numerical simulations of low-velocity impact on a weakly-confined porous propellant bed are presented which display lateral wall release leading to curved compaction and reaction wave behavior. {copyright} {ital 1996 American Institute of Physics.}
- Research Organization:
- Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 561682
- Report Number(s):
- CONF-950846-; ISSN 0094-243X; TRN: 9716M0025
- Journal Information:
- AIP Conference Proceedings, Vol. 370, Issue 1; Conference: American Physical Society biennial conference on shock compression of condensed matter, Seattle, WA (United States), 13-18 Aug 1995; Other Information: PBD: May 1996
- Country of Publication:
- United States
- Language:
- English
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