This figure illustrates the high-level structure of a CGNS database.
At the top is the base node of the CGNS database, labeled CGNSBase_t.
Below CGNSBase_t are the following nodes.
- Zone_t
- ZoneUnstructured_t
- FlowEquationSet_t
- Family_t
- Descriptor_t
- ReferenceState_t
- DataClass_t
- DimensionalUnits_t
- IndexDimension
- ConvergenceHistory_t
Below the Zone_t node are the following nodes.
- NCells, Nvertices
- GridCoordinates_t
- FlowSolutions_t
- ZoneGridConnectivity_t
- ZoneBC_t
Additional nodes may also be below Zone_t.
Below the ZoneUnstruct_t node are the following nodes.
- NCells, Nvertices
- GridCoordinates_t
- FlowSolutions_t
- ZoneGridConnectivity_t
- ZoneBC_t
- Elements_t
Additional nodes may also be below ZoneUnstruct_t.
Below the FlowEquationSet_t node are the following nodes.
- GoverningEquations_t
- ViscosityModel_t
- TurbulenceModel_t
- GasModel_t
- ThermalConductivityModel_t
- TurbulenceClosure_t
- Descriptor_t
- EquationDimension
Below the Family_t node are the following nodes.
- FamilyBC_t
- GeometryReference_t
- Descriptor_t