Two-Phase Model of Combustion in Explosions

Conference · Mon Jun 19 00:00:00 EDT 2006

OSTI ID:898484

Kuhl, A L; Khasainov, B; Bell, J

A two-phase model for Aluminum particle combustion in explosions is proposed. It combines the gas-dynamic conservation laws for the gas phase with the continuum mechanics laws of multi-phase media, as formulated by Nigmatulin. Inter-phase mass, momentum and energy exchange are prescribed by the Khasainov model. Combustion is specified as material transformations in the Le Chatelier diagram which depicts the locus of thermodynamic states in the internal energy-temperature plane according to Kuhl. Numerical simulations are used to show the evolution of two-phase combustion fields generated by the explosive dissemination of a powdered Al fuel.

• Research Organization: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 898484
• Report Number(s): UCRL-PROC-222284; TRN: US200706%%85
• Resource Relation: Conference: Presented at: Two-Phase Model of Combustion in Explosions, Karlsruhe, Germany, Jun 27 - Jun 30, 2006
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ALUMINIUM
COMBUSTION
CONSERVATION LAWS
ENERGY TRANSFER
EXPLOSIONS
EXPLOSIVES
THERMODYNAMICS
TRANSFORMATIONS