Introduction to SU 2 Code Structure
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1 Introduction to SU 2 Code Structure SU 2 Release Version 2.0 Workshop Stanford University Tuesday, January 15 th, 2013 Amrita K. Lonkar Department of Aeronautics & Astronautics Stanford University
2 SU 2 - Object Oriented Structure Why Object Oriented? Easy to add new capabili9es Easy to leverage a lot of exis9ng capabili9es. Jan 15th, 2013 SU2 Release Version 2.0 Workshop 2
3 SU 2 Modules SU2_CFD The main PDE solu7on module SU2_DDC The Domain Decomposi9on Code SU2_MAC The Mesh Adapta9on Code SU2_MDC- The Mesh Deforma9on Code SU2_PBC The Periodic Boundary Condi9on Code SU2_SMC The Sliding Mesh Code Jan 15th, 2013 SU2 Release Version 2.0 Workshop 3
4 SU2_CFD Module 1a) Read Input Class: CConfig Read the config file 1b) Read Mesh Class: CGeometry Read the mesh file Set up mul9grid meshes trunk/common/ 2) Solve Equa7ons Pick Solver Class: CSolu9on Euler Equa9ons: CEulerSolu9on Plasma Equa9ons: CPlasmaSolu9on Adjoint Equa9ons: CEulerAdjSolu9on And others 3) Write Output Class: COutput Print on screen Write solu9on file Write restart file Write history file trunk/common/ Store Flow Variables Class: CVariable Stores variables at every mesh node. Declare & store all flow variables CEulerVariable: Density, energy etc. CNSVariable: + Viscosity CAdjVariable: Adjoint variables And others Discre7za7on Class: CNumerics Spa9al Discre9za9on Convec9ve Flux, Jacobian CNumerics:: Roe/JST/etc. Viscous Flux, Jacobian CNumerics:: Avg_Grad/etc. Source Terms, Jacobian CNumerics:: PieceWiseConst. Temporal Discre9za9on Explicit Euler/ Runge- Kuda Implicit Time Integra9on Solve Linear System Class: CSparseMatrix BiCSTAB GMRES LU- SGS Precondi9oners Linelet Jacobi Update solu9on vector Jan 15th, 2013 SU2 Release Version 2.0 Workshop` MN YGHHF 4
5 CGeometry Class CGeometry CPhysicalGeometry CMultiGridGeometry CPrimalGrid CDualGrid Children Classes Children Classes Files in Common/include: geometry_structure.hpp geometry_structure.inl In Common/src geometry_structure.cpp Parent Class: CDualGrid CEdge CPoint CVertex Parent Class: CPrimalGrid CHexahedron CLine CPyramid CRectangle CTetrahedron Jan 15th, 2013 SU2 Release Version 2.0 Workshop 5
6 CSolu9on Class CSolu9on Parent Class: CSolution CSolution CEulerSolution CTurbSolution CEulerSolution CPlasmaSolution CNSSolution CTurbSASolution CTurbSSTSolution CVariable CNumerics CSparseMatrix CWaveSolution CVariable CFEASolution New Turbulence Model CNumerics CSparseMatrix CHeatSolution CEulerVariable CRoe_Flow CLevelSetSolution Files in SU2_CFD/include: solu9on_structure.hpp solu9on_structure.inl In SU2_CFD/src solu9on_direct_mean.cpp solu9on_adjoint_mean.cpp solu9on_direct_plasma.cpp solu9on_direct_template.cpp etc. Jan 15th, 2013 CAdjEulerSolution CAdjTurbSolution CAdjPlasmaSolution CAdjLevelSetSolution CLinEulerSolution CTemplateSolution SU2 Release Version 2.0 Workshop CAdjNSSolution 6
7 CVariable Class Parent Class: CVariable CSolu9on CEulerVariable CNSVariable Stores variables for a par9cular solu9on CTurbVariable class, at EVERY grid node. CTurbSAVariable CPlasmaVariable CTurbSSTVariable CWaveVariable New Turbulence Model CVariable CNumerics CSparseMatrix CFEAVariable Files in SU2_CFD/include variable_structure.hpp variable_structure.inl SU2_CFD/src variable_direct.cpp variable_adjoint.cpp variable_template.cpp etc. Jan 15th, 2013 CHeatVariable CLevelSetVariable CAdjEulerVariable CAdjTurbVariable CAdjPlasmaVariable CAdjLevelSetVariable CLinEulerVariable CTemplateVariable SU2 Release Version 2.0 Workshop CAdjNSVariable 7
8 CNumerics Class Roe s Scheme JST Scheme Galerkin CSolu9on AUSM Scheme Parent Class: CNumerics Average Gradient HLLC Scheme Template Viscous Terms CVariable CNumerics CSparseMatrix Steger-Warming Scheme Child Classes for: Average Gradient Corrected Piecewise Constant Source Plasma Source Convec9ve Flux Discre9za9on + Jacobian Gravity Source Viscous Flux Discre9za9on + Jacobian Electrical Source Source Terms Discre9za9on + Jacobian Turbulence Source Roe-Turkel for low Mach Lax-Friedrich Scheme Files in SU2_CFD/include numerics_structure.hpp Upwinding for Turb Scalar numerics_structure.inl Template Convective Terms In SU2_CFD/src: numerics_structure.cpp numerics_convec9ve.cpp numerics_viscous.cpp numerics_source.cpp Transition Source Axisymmetric Source Rotational Frame Source Free Surface Source Template Source Terms Jan 15th, 2013 SU2 Release Version 2.0 Workshop 8
9 More here SU 2 Paper: Stanford University Unstructured (SU2): An open- source integrated computa9onal environment for mul9physics simula9on and design. AIAA Developers contact: susquared- dev@mailman.stanford.edu Thank you Jan 15th, 2013 SU2 Release Version 2.0 Workshop 9
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