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133 lines
5.8 KiB
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133 lines
5.8 KiB
ReStructuredText
====================
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What's New in 0.11.0
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====================
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.. currentmodule:: openmc
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-------
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Summary
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-------
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This release of OpenMC adds several major new features: :ref:`depletion
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<usersguide_depletion>`, photon transport, and support for CAD geometries
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through DAGMC. In addition, the core codebase has been rewritten in C++14 (it
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was previously written in Fortran 2008). This makes compiling the code
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considerably simpler as no Fortran compiler is needed.
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Functional expansion tallies are now supported through several new tally filters
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that can be arbitrarily combined:
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- :class:`openmc.LegendreFilter`
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- :class:`openmc.SpatialLegendreFilter`
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- :class:`openmc.SphericalHarmonicsFilter`
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- :class:`openmc.ZernikeFilter`
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- :class:`openmc.ZernikeRadialFilter`
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Note that these filters replace the use expansion scores like ``scatter-P1``.
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Instead, a normal ``scatter`` score should be used along with a
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:class:`openmc.LegendreFilter`.
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The interface for random sphere packing has been significantly improved. A new
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:func:`openmc.model.pack_spheres` function takes a region and generates a
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random, non-overlapping configuration of spheres within the region.
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------------
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New Features
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------------
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- White boundary conditions can be applied to surfaces
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- Support for rectilinear meshes through :class:`openmc.RectilinearMesh`.
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- The :class:`Geometry`, :class:`Materials`, and :class:`Settings` classes now
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have a ``from_xml`` method that will build an instance from an existing XML
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file.
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- Predefined energy group structures can be found in
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:data:`openmc.mgxs.GROUP_STRUCTURES`.
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- New tally scores: ``H1-production``, ``H2-production``, ``H3-production``,
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``He3-production``, ``He4-production``, ``heating``, ``heating-local``, and
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``damage-energy``.
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- Switched to cell-based neighor lists (`PR 1140
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<https://github.com/openmc-dev/openmc/pull/1140>`_)
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- Two new probability distributions that can be used for source distributions:
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:class:`openmc.stats.Normal` and :class:`openmc.stats.Muir`
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- The :mod:`openmc.data` module now supports reading and sampling from ENDF File
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32 resonance covariance data (`PR 1024
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<https://github.com/openmc-dev/openmc/pull/1024>`_).
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- Several new convenience functions/methods have been added:
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- The :func:`openmc.model.cylinder_from_points` function creates a cylinder
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given two points passing through its center and a radius.
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- The :meth:`openmc.Plane.from_points` function creates a plane given three
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points that pass through it.
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- The :func:`openmc.model.pin` function creates a pin cell universe given a
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sequence of concentric cylinders and materials.
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------------------
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Python API Changes
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------------------
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- All surface classes now have coefficient arguments given as lowercase names.
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- The order of arguments in surface classes has been changed so that
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coefficients are the first arguments (rather than the optional surface ID).
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This means you can now write::
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x = openmc.XPlane(5.0, 'reflective')
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zc = openmc.ZCylinder(0., 0., 10.)
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- The ``Mesh`` class has been renamed :class:`openmc.RegularMesh`.
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- The ``get_rectangular_prism`` function has been renamed
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:func:`openmc.model.rectangular_prism`.
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- The ``get_hexagonal_prism`` function has been renamed
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:func:`openmc.model.hexagonal_prism`.
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- Python bindings to the C/C++ API have been move from ``openmc.capi`` to
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:mod:`openmc.lib`.
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---------
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Bug Fixes
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---------
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- `Rotate azimuthal distributions correctly for source sampling <https://github.com/openmc-dev/openmc/pull/1363>`_
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- `Fix reading ASCII ACE tables in Python 3 <https://github.com/openmc-dev/openmc/pull/1176>`_
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- `Fix bug for distributed temperatures <https://github.com/openmc-dev/openmc/pull/1178>`_
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- `Fix bug for distance to boundary in complex cells <https://github.com/openmc-dev/openmc/pull/1172>`_
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- `Bug fixes for precursor decay rate tallies <https://github.com/openmc-dev/openmc/pull/1156>`_
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- `Check for invalid surface IDs in region expression <https://github.com/openmc-dev/openmc/pull/1142>`_
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- `Support for 32-bit operating systems <https://github.com/openmc-dev/openmc/pull/1071>`_
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- `Avoid segfault from unused nuclides <https://github.com/openmc-dev/openmc/pull/979>`_
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- `Avoid overflow when broadcasting tally results <https://github.com/openmc-dev/openmc/pull/962>`_
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------------
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Contributors
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------------
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This release contains new contributions from the following people:
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- `Brody Bassett <https://github.com/brbass>`_
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- `Will Boyd <https://github.com/wbinventor>`_
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- `Andrew Davis <https://github.com/makeclean>`_
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- `Iurii Drobyshev <https://github.com/dryuri92>`_
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- `Guillaume Giudicelli <https://github.com/GiudGiud>`_
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- `Brittany Grayson <https://github.com/graybri3>`_
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- `Zhuoran Han <https://github.com/hanzhuoran>`_
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- `Sterling Harper <https://github.com/smharper>`_
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- `Andrew Johnson <https://github.com/drewejohnson>`_
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- `Colin Josey <https://github.com/cjosey>`_
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- `Shikhar Kumar <https://github.com/shikhar413>`_
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- `Travis Labossiere-Hickman <https://github.com/tjlaboss>`_
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- `Matias Lavista <https://github.com/matiaslavista>`_
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- `Jingang Liang <https://github.com/liangjg>`_
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- `Alex Lindsay <https://github.com/lindsayad>`_
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- `Johnny Liu <https://github.com/johnnyliu27>`_
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- `Amanda Lund <https://github.com/amandalund>`_
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- `Jan Malec <https://github.com/janmalec>`_
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- `Isaac Meyer <https://github.com/icmeyer>`_
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- `April Novak <https://github.com/aprilnovak>`_
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- `Adam Nelson <https://github.com/nelsonag>`_
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- `Gavin Ridley <https://github.com/gridley>`_
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- `Jose Salcedo Perez <https://github.com/salcedop>`_
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- `Paul Romano <https://github.com/paulromano>`_
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- `Sam Shaner <https://github.com/samuelshaner>`_
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- `Jonathan Shimwell <https://github.com/Shimwell>`_
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- `Patrick Shriwise <https://github.com/pshriwise>`_
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- `John Tramm <https://github.com/jtramm>`_
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- `Jiankai Yu <https://github.com/rockfool>`_
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- `Xiaokang Zhang <https://github.com/zxkjack123>`_
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