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Documentation

Is It Possible to Add Only One Inlet Flow and One Outlet Flow to a Domain?

No, if the domain only has 1 inlet and 1 outlet face, the following configurations may fail:

  • Velocity inlet BC (Boundary condition)
  • Velocity outlet BC

This will cause a numerical error due to the over-constrained conditions, which may lead to the simulation not running.

The following boundary condition (BC) configuration is recommended:

  • Velocity inlet BC
  • Velocity outlet BC
  • Pressure outlet BC

An additional face or faces can be selected to create an outlet.

In reality, mass balance will be kept through the leakage on windows, doors, etc. Users can either add a small outlet to the CAD model or choose the frames of the windows or doors in the model.

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