SVEA and NuScale models + Bugfixes (#161)

* Added a 2D SVEA assembly and 2D NuScale model.
* Fixed Gmsh model IO mapping.
* Added Material.addNuclidesAtomPercent
* Fixed typos and omissions in docs.
* Fixed a unit error in VERA models gap material density

docs/source/install.rst

@@ -271,7 +271,7 @@ See the files in ``UM2/scripts/deps`` for more information on spack environments
 
     .. code-block:: bash
 
- spack add pugixml%gcc@12       g++ --version                       # Expect 12+
+        g++ --version                       # Expect 12+
         gfortran --version                  # Expect 12+
         cmake --version                     # Expect 3.25+
         find $SPACK_ENV -name libhdf5*      # Expect non-empty output

docs/source/mpact.rst

@@ -51,8 +51,10 @@ MPACT requires gcc version 8 and mpich version 3.3 if MPI is to be used.
     spack compiler find
     spack env create mpact
     spack env activate mpact
+    spack add cmake%[email protected]
     spack add [email protected]%[email protected]
     spack add hdf5%[email protected] +cxx+fortran~mpi
+    spack spec
     spack install
 
 Now we will begin to install MPACT. We will not cover cloning MPACT, MPACT_Extras, or Futility here.

include/um2/gmsh/model.hpp

@@ -52,6 +52,17 @@ groupPreservingIntersect(gmsh::vectorpair const & object_dimtags,
                          int tag = -1, bool remove_object = true,
                          bool remove_tool = true);
 
+// A gmsh::model::occ::cut that preserves the model's physical groups
+//
+// In the event that two overlapping entities have material physical groups, the
+// optional material hierarchy is used to choose a single material for the resultant
+// overlapping entity/entities.
+void
+groupPreservingCut(gmsh::vectorpair const & object_dimtags,
+                   gmsh::vectorpair const & tool_dimtags, gmsh::vectorpair & out_dimtags,
+                   std::vector<gmsh::vectorpair> & out_dimtags_map, int tag = -1,
+                   bool remove_object = true, bool remove_tool = true);
+
 //==============================================================================
 // Functions for user-level API. These functions should take um2::Vector, um2::String,
 // etc. Not std::vector, std::string, etc.

include/um2/physics/material.hpp

@@ -171,9 +171,16 @@ class Material
   void
   addNuclide(String const & symbol, Float num_density) noexcept;
 
+  void
+  addNuclideWt(Int zaid, Float wt_percent) noexcept;
+
   void
   addNuclideWt(String const & symbol, Float wt_percent) noexcept;
 
+  void
+  addNuclidesAtomPercent(Vector<String> const & symbols,
+                         Vector<Float> const & percents) noexcept;
+
   [[nodiscard]] constexpr auto
   hasXSec() const noexcept -> bool
   {

models/CMakeLists.txt

@@ -3,4 +3,6 @@ include(${PROJECT_SOURCE_DIR}/cmake/um2_add_executable.cmake)
 add_subdirectory(./c5g7)
 add_subdirectory(./vera)
 add_subdirectory(./crocus)
+add_subdirectory(./svea)
+add_subdirectory(./nuscale)
 add_subdirectory(./fnr)

models/nuscale/CMakeLists.txt

@@ -0,0 +1 @@
+um2_add_executable(./nuscale_2d.cpp)