SU2 code

• Major release, along with SU2_EDU

• Renamed C++ modules for clarity:
• * SU2_DDC ---> SU2_PRT
• * SU2_MDC ---> SU2_DEF
• * SU2_MAC ---> SU2_MSH
• * SU2_GDC ---> SU2_GEO
• * SU2_GPC ---> SU2_DOT
• Stricter checking and improved error messages for robust parsing of configuration options.
• Unified set of SU2 test cases (meshes and config. files) are now available on GitHub (https://github.com/su2code/TestCases).
• Major updates to the MPI implementation that improve performance and align with the MPI 3.0 standard.
• Modifications that greatly enhance computational efficiency and memory scalability of mesh partitioning for parallel calculations.
• New constant lift mode. Specify a target lift coefficient rather than a fixed angle of attack.
• Upgrades to the CGNS mesh reader for further support of mixed-element meshes.
• General bug fixes and maintenance.

• Additional verification test cases for shape design using the compressible adjoint capability (in collaboration with Lockheed Martin).
• Preliminary structure for the simulation of real gases (in collaboration with TuDelft and Politecnico di Milano).
• New FFD design variables (in collaboration with Volkswagen).
• New preconditioners and smoothers for implicit time integration (in collaboration with Intel).
• Simplified configuration options (in collaboration with the large SU2 users community. Thanks!).
• General bug fixes and maintenance.

• SU2 version 3.2.2 includes general bug fixes and maintenance.
• The Pointwise and SU2 joint workshop (Sept 29th-30th, 2014) is based on this release.

• Improved multigrid agglomeration algorithm.
• United States customary units (US).
• Improved I/O.
• New smoothers and preconditioners for the implicit formulation.
• Simplified configuration options.
• General bug fixes and maintenance.

• New MPI implementation (only one .su2 mesh file per rank).
• Improved multigrid (including Full MG).
• Code optimization using the analyze tool (Xcode).
• Simplified configuration options.
• General bug fixes and maintenance.

New Features:

• Non-ideal compressible fluid flows (NICFD): Van der Waals and Peng-Robinson equations of state.
• Fully parallel preprocessing with ParMETIS.
• SA-neg turbulence model.
• Adaptive CFL.
• Easily generate FFD boxes with new options.
• Force breakdown file and FieldView output.
• Scale, rotate, translate meshes in SU2_DEF.
• Iterative smoothers: Jacobi, LU-SGS, ILU(0).
• Updated non-dimensionalization options for ease of use.
• General bug fixes.

Performance Improvements:

• MPI and general performance improvements.
• Increased mesh deformation stability for all unstructured mesh elements.
• CGNS parallel partitioning improvements.
• Automated multigrid parameter selection.
• Increased robustness for upwind methods.
• Low-storage output mode.

Additional Updates:

• Updated documentation on the GitHub wiki, including user tutorials and new developer information.
• New regression test system integrated with Travis CI.

• Improved performance for scaling, rotating, translating meshes using SU2_DEF.
• Configuration file option MATH_PROBLEM now requires CONTINUOUS_ADJOINT instead of ADJOINT.
• New datatype abstraction for future flexibility: all current and future double types in the code should be the new su2double type.
• New MPI wrapper abstraction for future flexibility.
• Restructuring of the test case suite: the configuration files for the TestCases repository now live in a mirrored directory structure under the SU2 repository in order to make automatic testing with Travis CI more effective. To use, download both repositories and recursively copy the contents of one TestCases/ directory into the other to complete the set.
• Clean up of the build-from-source process, including file placement and default build settings.
• New compile flag options for including the HDF5, SZIP, and ZLIB external libraries, which enables HDF5-based CGNS file usage with SU2.
• General bug fixes and code maintenance.

• Algorithmic Differentiation for exact derivative computations throughout the code.
• Discrete adjoint implementation for the Euler, Navier-Stokes, and RANS equations.
• New adjoint outlet boundary conditions for treating downstream functionals.
• High-level driver classes for easily formulating multi-physics problems.
• Generalized Riemann flow boundary condition, including real gas effects.
• New finite element class library for future flexibility.
• Modifications to the source code for easier compilation on Windows.
• General bug fixes and performance improvements.

• Native Fluid-Structure Interaction (FSI) solver.
• Unsteady discrete adjoint for the Euler, Navier-Stokes, and RANS equations.
• Increased robustness of the pseudo-structural mesh deformation routines.
• Memory and efficiency improvements related to parallel file readers, mesh partitioning, and class data management.
• Expanded regression suite coverage to additional modules and new test cases.
• Improved solution output for RANS visualization.
• General bug fixes and performance improvements.

• Redesign of the high-level Driver classes for code clarity and future flexibility.
• Alternating digital tree (ADT) implementation for efficient geometric searches.
• Stability improvements for the periodic boundary condition implementation.
• Improved memory management and leak removal throughout the entire codebase.
• CGNS v3.3.0 now distributed and automatically integrated with the autotools build.
• Additional bug fixes, stability improvements, and general code maintenance.

• New in-memory Python wrapping of SU2 using SWIG with accompanying high-level API.
• Class enhancements for multiphysics applications, including interpolation and transfer.
• Free-form deformation (FFD) extensions, including bezier curves and improved usability.
• Reorganization of the incompressible solver for future expansion.
• Harmonic Balance flow analysis capability.
• Algebraic transition model implementation.
• More and better boundary conditions (accuracy and convergence improvements).
• Extensions to scripting for automated database creation (compute_polar.py).
• Critical improvements in I/O, including more feedback to the user.
• Additional bug fixes, stability improvements, and general code maintenance.