[Commits] [svn:einsteintoolkit] Paper_EinsteinToolkit_2010/ (Rev. 104)

[cott at tapir.caltech.edu]

User: cott
Date: 2011/08/11 07:39 AM

Modified:
 /
  ET.tex

Log:
 * finished EOS text

File Changes:

Directory: /
============

File [modified]: ET.tex
Delta lines: +15 -8
===================================================================
--- ET.tex	2011-08-11 09:31:45 UTC (rev 103)
+++ ET.tex	2011-08-11 12:39:27 UTC (rev 104)
@@ -1382,8 +1382,9 @@
 
 
 
-\subsection{Equations of State}\pages{1 Christian}
+\subsection{Equations of State}
 \label{sec:eoss}
+%%% Written by Christian Ott
 
 An equation of state connecting the primitive state variables is
 needed to close the system of GR hydrodynamics equations.  The module
@@ -1446,15 +1447,21 @@
 collapse and bounce dynamics in stellar collapse.
 
 \codename{EOS\_Omni} also integrates the \codename{nuc\_eos} driver
-routine, which was first developed for the \codename{GR1D} code by
-O'Connor \& Ott \cite{oconnor:10}, for tabulated microphysical
-finite-temperature EOS that assume nuclear statistical equilibrium
-(NSE).
+routine, which was first developed for the \codename{GR1D} code
+\cite{oconnor:10}, for tabulated microphysical finite-temperature EOS
+that assume nuclear statistical equilibrium (NSE). \codename{nuc\_eos}
+handles EOS tables in \codename{HDF5} format that contain entries for
+thermodynamic variables $X = X(\rho,T,Y_e)$, where $T$ is the matter
+temperature and $Y_e$ is the electron fraction.  \codename{nuc\_eos}
+also supports calls for $X = X(\rho,\epsilon,Y_e)$ and carries out a
+Newton iteration to find $T(\rho,\epsilon,Y_e)$.  For performance
+reasons, \codename{nuc\_eos} employs simple tri-linear interpolation
+in thermodynamic quantities and thus requires finely spaced tables to
+maintain thermodynamic consistency at acceptable level. EOS tables
+in the format required by \codename{nuc\_eos} are freely available
+from {\tt http://stellarcollapse.org}.
 
 
-{\color{red} continue here}
-
-
 \subsection{Analysis\pagesdone{Tanja}}
 \label{sec:analysis}
 It is often beneficial and sometimes necessary to evaluate analysis quantities