Equation of State Scalings in Kull

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In this short report, we consider two types of equation of state (EOS) scalings, which will be referred to as type I (or density scaling) and type II (or Thomas-Fermi scaling). EOS scalings are used to correct for the fact that EOS tables are constructed with a fixed isotopic composition. Even if the isotopics in a computational zone are evolving through chemical or nuclear reactions, the EOS lookups for pressure and energy (and their derivatives with respect to density and temperature) aren't normally cognizant of this fact. The EOS scalings are an attempt to fix this shortcoming. They typically modify ... continued below

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PDF-file: 7 pages; size: 39.2 Kbytes

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Ulitsky, M S; Zimmerman, G; Renard, P & Tang, N A December 10, 2007.

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Description

In this short report, we consider two types of equation of state (EOS) scalings, which will be referred to as type I (or density scaling) and type II (or Thomas-Fermi scaling). EOS scalings are used to correct for the fact that EOS tables are constructed with a fixed isotopic composition. Even if the isotopics in a computational zone are evolving through chemical or nuclear reactions, the EOS lookups for pressure and energy (and their derivatives with respect to density and temperature) aren't normally cognizant of this fact. The EOS scalings are an attempt to fix this shortcoming. They typically modify the incoming density and/or temperature based on ratios of isotopic quantities (like <A>{sub table}/<A>{sub zone}, <Z>{sub table}/<Z>{sub zone}), and then modify the table lookup values. In this way, the EOS can dynamically respond to the changing isotopics.

Physical Description

PDF-file: 7 pages; size: 39.2 Kbytes

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  • Report No.: UCRL-TR-237220
  • Grant Number: W-7405-ENG-48
  • DOI: 10.2172/923987 | External Link
  • Office of Scientific & Technical Information Report Number: 923987
  • Archival Resource Key: ark:/67531/metadc901749

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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Creation Date

  • December 10, 2007

Added to The UNT Digital Library

  • Sept. 27, 2016, 1:39 a.m.

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  • Nov. 23, 2016, 6:57 p.m.

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Ulitsky, M S; Zimmerman, G; Renard, P & Tang, N A. Equation of State Scalings in Kull, report, December 10, 2007; Livermore, California. (digital.library.unt.edu/ark:/67531/metadc901749/: accessed December 13, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.