Types of Boundary Conditions

When you select Boundary Conditions, the settings will display the boundaries for each region as shown below. You can set a boundary condition by selecting a boundary and pressing the right mouse button. When a boundary is selected, it is colored red in the graphic window.

Boundary Conditions setup

You can use the filter string feature to filter by entering a string to ensure that only boundary surfaces containing a specific string are displayed.

The boundary conditions are divided into four categories: Inlet, Outlet, Wall, and Misc, and each category contains the following types of boundary conditions. The display differs depending on the condition, such as multiphase flow, compressible flow, etc. Select a boundary surface and double-click it or click the Edit button to display the detailed settings of the boundary condition.

  • Inlet
    • Velocity Inlet
    • Flow Rate Inlet
    • Pressure Inlet
    • ABL Inlet, Atmospheric Boundary Layer Inlet
    • Free Stream
    • Open Channel Inlet) : Only for multiphase
    • Far-field Riemann) : Only for compressible flow
    • Subsonic Inlet) : Only for compressible flow
    • Supersonic Inflow) : Only for compressible flow
  • Outlet
    • Pressure Outlet
    • Outflow
    • Open Channel Outlet) : Only for multiphase
    • Subsonic Outflow) : Only for compressible flow
    • Supersonic Outflow) : Only for compressible flow
  • Wall
    • Wall
    • Thermo-Coupled Wall
  • Misc.
    • Symmetry
    • Interface
    • Empty
    • Wedge
    • Cyclic
    • Porous Jump
    • Fan