2. Modeling

These tutorials explain the objects used to construct an OpenSn model. They focus on one modeling choice at a time rather than on a complete transport workflow.

• 2.1. Meshing and Partitioning
  • 2.1.1. Introduction to Meshing and Partitioning
  • 2.1.2. 2D Orthogonal Grid Generation
  • 2.1.3. 3D Orthogonal Grid Generation
  • 2.1.4. Reading a 2D gmsh file
  • 2.1.5. Reading a 3D gmsh file
  • 2.1.6. Reading a 2D obj file
  • 2.1.7. Reading a 3D VTU file
  • 2.1.8. Reading a 2D mesh file and extruding it
  • 2.1.9. 3D Orthogonal Grid Generation with multiple block IDs
• 2.2. Cross Sections
  • 2.2.1. Introduction to Cross Sections
  • 2.2.2. Built-in method for 1-group cross sections
  • 2.2.3. Reading OpenSn ASCII cross sections
  • 2.2.4. Read HDF5 file from OpenMC to load multi-group cross sections
• 2.3. Angular Quadrature
  • 2.3.1. Introduction to Angular Quadratures
  • 2.3.2. Product Quadrature
  • 2.3.3. Triangular Quadrature
  • 2.3.4. Simplified Linear Discontinuous Finite Element (LDFE) Quadrature
  • 2.3.5. Lebedev Quadrature
• 2.4. Logical Volumes
  • 2.4.1. Introduction to Logical Volumes
  • 2.4.2. Using Logical Volumes
• 2.5. Groupsets
  • 2.5.1. Multiple Groupsets in an Infinite-Medium
• 2.6. Sources and Boundaries
  • 2.6.1. Material Source Selected by Block ID
  • 2.6.2. Volumetric Source over a Logical Volume
  • 2.6.3. Point Source
  • 2.6.4. Isotropic Boundary Source and Leakage
  • 2.6.5. Arbitrary Angular Boundary Source
  • 2.6.6. Adjoint Source over a Logical Volume