MOOSE Newsletter (October 2024)

2024.10.17 Update

• Support for reading (the surface triangulations defined by) STL files. This combined with our recent tetrahedralization support also allows for creating volume meshes from STL files; however, creating high-quality volume meshes from arbitrary STL files is still a work in progress.

• Support for higher-order (up to quintic) vector-valued FE bases in the Nédélec (first kind) and Ravier-Thomas FE families.

• Better handling for odd IsoGeometric Analysis extraction operators, and better error handling for broken IGA operators.

• Better unit test coverage for NodeElem; fixes to NodeElem methods which should be no-op but instead threw errors.

• Unit test coverage for fifth-order MONOMIAL elements. So far new tests have not uncovered any problems, but based on user reports of convergence issues we recommend limiting MONOMIAL variables to fourth-order.

• Fixes for condensed eigensolve support after mesh reinit

• Fixes for caching of FE data on sides of meshes with non-uniform p-refinement levels

• Minor fixes for compiler complaints from nvc++ and clang++ -fsanitize

• Properly register --keep-cout and --drop-cerr warnings with PETSc to avoid "options you set that were not used" false positives.

• Better error messages when tetrahedralizing a non-watertight input boundary mesh.

• Refactoring in AbaqusIO, to enable subclasses in MOOSE code with experimental support for more advanced file features.

• Improvements and fixes in Reduced Basis code, particularly the Empirical Interpolation Method classes.