2006
DOI: 10.2172/882924
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Aluminum equation of state validation and verification for the ALEGRA HEDP simulation code.

Abstract: Determining whether an equation of state (EOS) table is valid for a given regime requires several steps that include confirming that it obeys the thermodynamic consistency relations and that the table matches available existing experimental data. Once the EOS is analyzed, then we must ensure the simulation code can reproduce analytical results.In this report, we show analytical results of Hugoniot calculations and compare them with values calculated from experimental U s − U P data. Next we check that the tabl… Show more

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Cited by 10 publications
(5 citation statements)
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“…The negative internal energy is encountered in some EOS models in certain density-temperature domain. [13,22] Generally, a normalization treatment is designed to generate non-negative minimum internal energy and pressure under normal conditions. [23] In the present work, the exchange and quantum corrections are not included in the electronic internal energy term to avoid negative total internal energy, making the EOS model approximately correct in this region.…”
Section: Equation Of State Modelmentioning
confidence: 99%
“…The negative internal energy is encountered in some EOS models in certain density-temperature domain. [13,22] Generally, a normalization treatment is designed to generate non-negative minimum internal energy and pressure under normal conditions. [23] In the present work, the exchange and quantum corrections are not included in the electronic internal energy term to avoid negative total internal energy, making the EOS model approximately correct in this region.…”
Section: Equation Of State Modelmentioning
confidence: 99%
“…(5)- (8) now allow for the determination of particle velocity given measured stress, which in turn permits the solution of any additional state parameters of interest with use of the Rankine-Hugoniot jump Eqs. (1)- (3). In order to construct the principal Hugoniot of the inner layer from an experiment, the particle velocities (u n ) associated with the various states can be transformed to particle velocities along the principal Hugoniot of the inner layer (u principal, n ) through use of the equation…”
Section: Theoretical Considerationsmentioning
confidence: 99%
“…[1][2][3][4][5][6][7] When coupled with a valid thermodynamic Equation of State (EOS), it allows the investigator to accurately develop models that predict all states of matter associated with dynamic loading events. Researchers may generate a single Hugoniot state through the capture of two shock properties from an experiment.…”
Section: Introductionmentioning
confidence: 99%
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“…On the experimental side X-ray Thomson scattering (XRTS) is a powerful tool to analyze matter under extreme conditions [1], and various materials, e.g. Be [2][3][4], B [5,6], C [7], LiH [8], and Al [9], have succesfully been probed during the last decade. Warm dense matter as well as strongly-coupled plasmas can occur as matter in extreme states [10].…”
Section: Introductionmentioning
confidence: 99%