CFD Boundary Conditions

Structure for the boundary condition tuple = ("CAPS Group Name", "Value"). "CAPS Group Name" defines the capsGroup on which the boundary condition should be applied. The "Value" can either be a JSON String dictionary (see Section JSON String Dictionary) or a single string keyword string (see Section Single Value String)

JSON String Dictionary

If "Value" is a JSON string dictionary the following keywords ( = default values) may be used:

• bcType = "Inviscid"
  Boundary condition type. Options:

  • Inviscid
  • Viscous
  • Farfield
  • Extrapolate
  • Freestream
  • BackPressure
  • Symmetry
  • SubsonicInflow
  • SubsonicOutflow
  • MassflowIn
  • MassflowOut
  • MachOutflow
  • FixedInflow
  • FixedOutflow

Wall Properties

• wallTemperature = 0.0
  Temperature on inviscid and viscous surfaces.

• wallHeatFlux = 0.0
  Heat flux on inviscid and viscous surfaces.

Stagnation Properties

• totalPressure = 0.0
  Total pressure on a boundary surface.

• totalTemperature = 0.0
  Total temperature on a boundary surface.

• totalDensity = 0.0
  Total density of boundary.

Static Properties

• staticPressure = 0.0
  Static pressure of boundary.

• staticTemperature = 0.0
  Static temperature of boundary.

• staticDensity = 0.0
  Static density of boundary.

Velocity Components

• uVelocity = 0.0
  X-velocity component on boundary.

• vVelocity = 0.0
  Y-velocity component on boundary.

• wVelocity = 0.0
  Z-velocity component on boundary.

• machNumber = 0.0
  Mach number on boundary.

Massflow Properties

• massflow = 0.0
  Massflow through the boundary.

Single Value String

If "Value" is a single string the following options maybe used:

• "Inviscid" (default)
• "Viscous"
• "Farfield"
• "Extrapolate"
• "Freestream"
• "SymmetryX"
• "SymmetryY"
• "SymmetryZ"