Detonation Product EOS Studies: Using ISLS to Refine Cheetah
Knowledge of an effective interatomic potential function underlies any effort to predict or rationalize the properties of solids and liquids. The experiments we undertake are directed towards determination of equilibrium and dynamic properties of simple fluids at densities sufficiently high that traditional computational methods and semi-empirical forms successful at ambient conditions may require reconsideration. In this paper we present high-pressure and temperature experimental sound speed data on a simple fluid, methanol. Impulsive Stimulated Light Scattering (ISLS) conducted on diamond-anvil cell (DAC) encapsulated samples offers an experimental approach to determine cross-pair potential interactions through equation of state determinations. In addition the kinetics of structural relaxation in fluids can be studied. We compare our experimental results with our thermochemical computational model Cheetah. Computational models are systematically improved with each addition of experimental data.
- Research Organization:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Sponsoring Organization:
- US Department of Energy (US)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 15005434
- Report Number(s):
- UCRL-JC-142246; TRN: US200322%%438
- Resource Relation:
- Journal Volume: 620; Conference: 12th Annual Meeting, American Physical Society Topical Conference, Atlanta, GA (US), 06/24/2001--06/29/2001; Other Information: PBD: 8 Aug 2001
- Country of Publication:
- United States
- Language:
- English
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