학술논문

Thermodynamics of Combustion in a Confined Explosion
Document Type
Conference
Author
Source
Conference: 12th All Union Symposium on Combustion and Explosion, Chernogolovka, Moscow Region (RU), 09/11/2000--09/15/2000; Other Information: PBD: 5 Feb 2000
Subject
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE AIR
COMBUSTION
EXPLOSIONS
FUEL CONSUMPTION
GASES
THERMODYNAMICS
TNT
TRANSPORT
Language
English
Abstract
Considered here are explosions from condensed TNT charges--where the expanded detonation products gases are rich in C and CO [1]. Mixing with air causes oxidation/combustion [2], which dramatically increases the pressure in confined systems (vid. Fig. 1). We treat this as an Inverse Problem: infer fuel consumption from the measured pressure P {triple_bond} {bar p}(t)/p{sub i}. The Model expounded here represents a valuable tool for extracting the evolution of combustion system from a readily measurable quantity (pressure). The Model establishes the fuel consumption history as well as the evolution of thermodynamic solution (specific volumes, energies and densities) of the components that will generate the observed pressure profile. This solution in Thermodynamic (State) Space provides extraordinarily clear insight into the combustion process, which is normally clouded by a myriad of transport processes that occur in physical space.