Continuity is available as an option at interfaces between parts in a pair. This condition gives continuity in all the dependent variables: density, velocity, and pressure. It corresponds to a situation where the boundary has no direct effect on the acoustic fields (subscripts “src” and “dest” in the equation refers to the source and destination, the two sides of the pair):

Select an identity pair. A pair is automatically created in the geometry when Create pairs is checked in the Form Union/Assembly step.

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