Use the Interior Normal Impedance node to apply a transfer impedance condition on an interior boundary. The condition relates the normal stress at the two sides of the boundary (up and down) to the normal velocity via the normal transfer impedance
Zn. The condition allows discontinuities (a slit) in pressure and temperature depending on the condition chosen for the temperature.
Select a Thermal condition —
Isothermal (the default) or
Adiabatic. See the
Isothermal and
Adiabatic conditions for further details.