An equation of state for detonation products incorporating small carbon clusters

Journal Article · Wed Jul 01 04:00:00 EDT 1998 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.55636· OSTI ID:295453

Shaw, M S ^[1]

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1. Group T-14 MS B214, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)

A theoretical equation of state for detonation products is presented that incorporates the small cluster behavior of the carbon. For small diamond clusters of the size found in recovery experiments, the fraction of carbon atoms on the surface can be as much as 25{percent}. The composition and properties of the clusters are modeled with the dangling bonds capped by various radicals composed of C, H, N, and O from the background molecular fluid mixture. A perturbation theory approach is used for the mixture of molecular fluids that also includes features based on Monte Carlo simulations. For example, the effect of cross potentials on nonideal mixing in chemical equilibrium simulations, is shown to be well approximated by an entropy shift and ideal mixing. Comparison is made of the EOS with individual species Hugoniot data and with detonation velocity data for a variety of explosives. In addition, recent data for PBX-9501 is utilized which characterizes sound speed, overdriven Hugoniot, adiabatic {gamma}, Gr{umlt u}neisen {gamma}, and a precise thermodynamic CJ state(1). {copyright} {ital 1998 American Institute of Physics.}

• Sponsoring Organization: USDOE
• OSTI ID: 295453
• Report Number(s): CONF-970707--
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 429; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE
ATOMIC CLUSTERS
CARBON
CHEMICAL EXPLOSIVES
DETONATION WAVES
EQUATIONS OF STATE
EXPLOSIONS
GRUENEISEN CONSTANT
THERMODYNAMIC PROPERTIES
VERY HIGH PRESSURE