FEMDocumentation`
FEMDocumentation`

BoundaryConditionData

BoundaryConditionData[]

represents data that is used for discretizing partial differential equation boundary conditions.

Details

  • BoundaryConditionData[] is generated by InitializeBoundaryConditions.
  • BoundaryConditionData[] can be extracted from NDSolve`StateData objects generated by NDSolve`ProcessEquations using the "FiniteElementData" and "InitializedBoundaryConditions" property.
  • In standard output format, only the number-dependent variables and the space dimension are shown.
  • BoundaryConditionData[] objects are used as input for DiscretizeBoundaryConditions.
  • BoundaryConditionData[][prop] gives the property prop of the BoundaryConditionData object. The following properties may be given:
  • "All"list of all precomputed boundary conditons
    "BoundaryTolerance"value of option with the same name
    "Constraints"list of constraints induced by boundary conditions
    "Discrete"list of stationary discrete conditions
    "IndexedDiscrete"list of stationary indexed discrete conditions
    "Parametric"list of stationary parametric conditions
    "Properties"list of properties
    "ScaleFactor"value of the scale factor for transient handling of Dirichlet boundary conditions
    "Stationary"list of stationary boundary conditions
    "Transient"list of transient boundary conditions

Examples

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Basic Examples  (1)

Load the finite element package:

Set up a NumericalRegion:

Set up variable and solution data:

Specify boundary conditions:

Initialize the boundary conditions:

Scope  (7)

"All"  (1)

Extract all processed boundary conditions from the BoundaryConditionData:

"Constraints"  (1)

Extract constraints induced by boundary conditions from the BoundaryConditionData:

"BoundaryTolerance"  (1)

Inspect the set boundary tolerance from the BoundaryConditionData:

"Properties"  (1)

Inspect the BoundaryConditionData properties:

"ScaleFactor"  (1)

Extract the set scale factor from the BoundaryConditionData:

"Stationary"  (1)

Extract the stationary boundary conditions from the BoundaryConditionData:

"Transient"  (1)

Extract the transient boundary conditions from the BoundaryConditionData:

Properties & Relations  (1)

Extract the state data from the NDSolve`StateData object:

Extract the initialized boundary conditions from the NDSolve`StateData object: