Using CFD Boundary Conditions

• Inlet Velocity
• Inlet Pressure
• Inlet Massflow
• Outlet Pressure
• Farfield Pressure
• Symmetry

CUBIT can export models to the Fluent mesh format and supports defining the above CFD boundary conditions. Only the region on which the BC acts can be defined in CUBIT. The data associated with each boundary condition (pressure, velocity, mass values) is not defined within CUBIT and must be assigned using a CFD model editor, such as Fluent.

The following shows the commands for creating and modifying CFD boundary conditions. To delete them, use the delete command (see Miscellaneous Commands).

Inlet Velocity

Create Inletvelocity [id] [name <'name'>] [{Add|On} {Surface} <entity_list>]

Modify Inletvelocity [id] [name <'name'>] [{Add|Remove} {Surface} <entity_list>]

Inlet Pressure

Create Inletpressure [id] [name <'name'>] [{Add|On} {Surface} <entity_list>]

Modify Inletpressure [id] [name <'name'>] [{Add|Remove} {Surface} <entity_list>]

Inlet Massflow

Create Inletmassflow [id] [name <'name'>] [{Add|On} {Surface} <entity_list>]

Modify Inletmassflow [id] [name <'name'>] [{Add|Remove} {Surface} <entity_list>]

Outlet Pressure

Create Outletpressure [id] [name <'name'>] [{Add|On} {Surface} <entity_list>]

Modify Outletpressure [id] [name <'name'>] [{Add|Remove} {Surface} <entity_list>]

Farfield Pressure

Create Farfieldpressure [id] [name <'name'>] [{Add|On} {Surface} <entity_list>]

Modify Farfieldpressure [id] [name <'name'>] [{Add|Remove} {Surface} <entity_list>]

Symmetry

Create Symmetry [id] [name <'name'>] [{Add|On} {Surface} <entity_list>]

Modify Symmetry [id] [name <'name'>] [{Add|Remove} {Surface} <entity_list>]