This tab sets the type, location, coordinate frame, frame type (stationary or rotating), and other details, for each boundary condition as detailed in the following sections:
You can set Boundary Type to one of: Inlet,
Outlet, Opening,
Wall, Symmetry.
Interface boundaries can be edited, but not created.
For details, see Available Boundary Conditions in the CFX-Solver Modeling Guide.
You can choose the location of a boundary condition from a list containing all 2D composite and primitive regions. For details, refer to the following sections:
The drop-down list contains commonly used regions (all composite
names and primitive names that are not referenced by any composites)
and the extended list (displayed when clicking the Ellipsis icon 
) contains all regions in a domain.
Tip:
Hold the Ctrl key as you click to select multiple regions.
With the Location drop-down list active, you can select regions by clicking them in the viewer with the mouse. This will display a small box containing the names of the regions that are available for selection.
Coordinate frames are used to determine the principal reference
directions of specified and solved vector quantities in your domain,
and to specify reference directions when creating boundary conditions
or setting initial values. By default, CFX-Pre uses Coord 0 as the reference coordinate frame for all specifications in the
model, but this can be changed to any valid CFX-Pre coordinate frame.
For details, see Coordinate Frames and Coordinate Frames in the CFX-Solver Modeling Guide.
When the boundary condition is in a rotating domain, the Frame Type setting affects whether the conditions you
specify on the boundary (pressure, velocity, and so on) are interpreted
relative to the (rotating) domain (Frame Type set to Rotating) or relative to the absolute
(stationary) frame of reference (Frame Type set
to Stationary), from the point of view of absolute
versus relative quantities.
For cases where there is relative motion between the coordinate frame and the boundaries, the boundary conditions are evaluated at the appropriate coordinate frame, either absolute or relative. The mesh coordinates are either rotated or counter-rotated at the boundary to match the coordinate frame. However, this is not true for the global coordinate frame (Coord 0).
For details, refer to the following sections:
This option is available only if profile data is loaded. For instructions on loading a profile, see Initialize Profile Data.
Select Use Profile Data to define this boundary condition using the external data file previously initialized. Choose from the Profile Name list and click to apply. CFX-Pre will automatically select options and values to best match the variables contained in the selected profile. Check the settings on the other tabs to ensure that the correct CEL expressions have been set. For details, see Interpolation (From File) User Functions (Profile Functions).
Note: If the points supplied in the profile data file do not geometrically overlap with the intended boundary mesh then there may be inaccuracies in the interpolation of profile data to the mesh.
Boundaries of type Opening can interact with GT-SUITE, obtaining values
from GT-SUITE and sending values to GT-SUITE over the boundary. As a prerequisite, there
must be at least one GT-SUITE Model object listed in the Outline tree view under
Simulation > Expressions,
Functions and Variables > GT-SUITE Models.
To have the boundary interact with GT-SUITE:
Select GT-SUITE Boundary Conditions > Use GT-SUITE Coupling.
Set GT-SUITE Boundary Conditions > GT-SUITE Setup > Model to the name of an existing GT-SUITE Model object.
On the Boundary Details tab, set various options to
GT-SUITE Couplingas applicable.Note: For CFX, mass flow and normal speed directed into the domain are considered positive. GT-SUITE conventions can differ.
For details about using GT-SUITE with CFX, see Coupling CFX to an External Solver: GT-SUITE Coupling Simulations in the CFX-Solver Modeling Guide.