Comparisons of HELIOS Simulation Results Using PROPACEOS and SESAME Equations of State
Comparisons of HELIOS Simulation Results Using PROPACEOS and SESAME Equations of State
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使用 PROPACEOS 和 SESAME 状态方程的 HELIOS 仿真结果比较
DOI：
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发表时间：
2007
期刊：
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通讯作者：
R. Waldman
中科院分区：
文献类型：
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作者：
J. Murray;D. McFarland;R. Waldman
在这份简短的备忘录中，我们讨论了使用HELIOS辐射流体动力学代码进行的几个基准计算的结果，以评估PROPACEOS中状态方程（EOS）模型的准确性。PROPACEOS中使用的建模总结见参考文献[1]。为此，我们已经运行了跨越几种常见材料的EOS参数空间的广泛范围的计算。在每种情况下，将使用PROPACEOS EOS表计算的HELIOS模拟结果与使用SECONOEOS表计算的结果进行比较[2]。PROPACEOS在强耦合区域（即，在相对高的密度和低温下），以及在弱耦合区域中利用详细的原子结构建模的孤立原子模型。弱耦合和强耦合制度之间的性质得到了插值在一个物理上一致的方式。下面，我们讨论来自使用CH、Al和Au的模拟的结果，从而跨越具有宽范围的原子序数的材料。这些计算中使用的SEARCH表为CH表7590、Al表3717和Au表2700。
In this brief memo, we discuss results from several benchmark calculations performed with the HELIOS radiation-hydrodynamics code to assess the accuracy of the equation of state (EOS) models in PROPACEOS. A summary of the modeling used in PROPACEOS is provided in Ref. [1]. To this end, we have run calculations that span a broad range of the EOS parameter space of several common materials. In each case, HELIOS simulation results computed using the PROPACEOS EOS tables are compared with those using SESAME EOS tables [2]. PROPACEOS uses a QEOS-type model [3] in the strong coupling regime (i.e., at relatively high densities and low temperatures), and an isolated atom model which utilizes detailed atomic structure modeling in the weak coupling region. Properties between the weak and strong coupling regimes are obtained by interpolating in a thermodynamically consistent manner. Below we discuss results from simulations using CH, Al, and Au, thereby spanning materials having a broad range of atomic number. The SESAME tables used in these calculations were tables 7590 for CH, 3717 for Al, and 2700 for Au.