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Update documentation for <energy_grid>.

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This commit is contained in:
Paul Romano 2014-07-23 23:59:30 -04:00
parent aeffdb7ce6
commit 99695b514e
2 changed files with 12 additions and 7 deletions
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16
docs/source/usersguide/input.rst
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@ -134,13 +134,17 @@ should be performed. It has the following attributes/sub-elements:
-------------------------
The ``<energy_grid>`` element determines the treatment of the energy grid during
a simulation. Setting this element to "nuclide" will cause OpenMC to use a
nuclide's energy grid when determining what points to interpolate between for
determining cross sections (i.e. non-unionized energy grid). To use a unionized
energy grid, set this element to "union". Note that the unionized energy grid
treatment is slightly different than that employed in Serpent.
a simulation. The valid options are "nuclide", "union", and "logarithm". Setting
this element to "nuclide" will cause OpenMC to use a nuclide's energy grid when
determining what points to interpolate between for determining cross sections
(i.e. non-unionized energy grid). Setting this element to "union" results in a
unionized energy grid with pointers to nuclide grids. Setting this element to
"logarithm" causes OpenMC to use a logarithmic mapping technique described in
LA-UR-14-24530_.
*Default*: union
*Default*: logarithm
.. _LA-UR-14-24530: https://laws.lanl.gov/vhosts/mcnp.lanl.gov/pdf_files/la-ur-14-24530.pdf
``<entropy>`` Element
---------------------

3
src/relaxng/settings.rnc
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@ -27,7 +27,8 @@ element settings {
(element weight_avg { xsd:double } | attribute weight_avg { xsd:double })?
}? &
element energy_grid { ( "nuclide" | "union" | "lethargy" ) }? &
element energy_grid { ( "nuclide" | "union" | "log" |
"logarithm" | "logarithmic" ) }? &
element entropy {
(element dimension { list { xsd:int+ } } |