EXP6 Fluids at Extreme Conditions Modeled by Two-Yukawa Potentials
Result description
A two-Yukawa representation of the EXP6 fluids at supercritical temperatures and high pressures has been developed and examined using molecular simulations. A uniquely defined mapping of the repulsive part of the EXP6 potential curve onto the two-Yukawapotential is used. Two ranges of temperatures, one encountered in geochemical applications Tgeo range and the other at conditions of detonations Tdet range, are considered and it is shown that the local structures of both fluids are practically identical. Deviations between the EXP6 and two-Yukawa potential functions at intermediate separations lead to differences in the thermodynamic properties of the two fluids at lower temperatures of the Tgeo range; at higher temperatures and in the high Tdet temperature range both the structural and thermodynamic properties of the EXP6 and two-Yukawa fluids are practically identical.
Keywords
The result's identifiers
Result code in IS VaVaI
Alternative codes found
RIV/44555601:13440/10:00005520
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
EXP6 Fluids at Extreme Conditions Modeled by Two-Yukawa Potentials
Original language description
A two-Yukawa representation of the EXP6 fluids at supercritical temperatures and high pressures has been developed and examined using molecular simulations. A uniquely defined mapping of the repulsive part of the EXP6 potential curve onto the two-Yukawapotential is used. Two ranges of temperatures, one encountered in geochemical applications Tgeo range and the other at conditions of detonations Tdet range, are considered and it is shown that the local structures of both fluids are practically identical. Deviations between the EXP6 and two-Yukawa potential functions at intermediate separations lead to differences in the thermodynamic properties of the two fluids at lower temperatures of the Tgeo range; at higher temperatures and in the high Tdet temperature range both the structural and thermodynamic properties of the EXP6 and two-Yukawa fluids are practically identical.
Czech name
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Czech description
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Classification
Type
Jx - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CF - Physical chemistry and theoretical chemistry
OECD FORD branch
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Result continuities
Project
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2010
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Chemical Physics
ISSN
0021-9606
e-ISSN
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Volume of the periodical
133
Issue of the periodical within the volume
9
Country of publishing house
US - UNITED STATES
Number of pages
8
Pages from-to
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UT code for WoS article
000281742900015
EID of the result in the Scopus database
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Result type
Jx - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP
CF - Physical chemistry and theoretical chemistry
Year of implementation
2010