Multidimensional DDT modeling of energetic materials

Conference · Tue Aug 01 00:00:00 EDT 1995

DOI:https://doi.org/10.2172/102194· OSTI ID:100269

Baer, M R; Hertel, E S; Bell, R L

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.

• Research Organization: Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC04-94AL85000
• OSTI ID: 100269
• Report Number(s): SAND-95-1765C; CONF-950846-11; ON: DE95016462
• Resource Relation: Conference: American Physical Society biennial conference on shock compression of condensed matter, Seattle, WA (United States), 13-18 Aug 1995; Other Information: PBD: [1995]
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
99 MATHEMATICS
COMPUTERS
INFORMATION SCIENCE
MANAGEMENT
LAW
MISCELLANEOUS
DETONATION WAVES
MATHEMATICAL MODELS
COMBUSTION CHAMBERS
DEFORMATION
COMBUSTION
C CODES