Pressure (Adiabatic)

Add a node to give a pressure boundary condition with adiabatic conditions for the temperature. The condition is given by

where pp is the desired pressure at the boundary, σ is the stress tensor, and n the surface normal. This is a good approximation when prescribing a pressure at an inlet or outlet.

Enter a value or expression for the pp (SI unit: Pa).

Constraint Settings

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) and select in the dialog box.

Excluded Edges/Points

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) and select in the dialog box. See Suppressing Constraints on Lower Dimensions for details.