PAFEC VibroAcoustics - Transient analysis of a horn

The example below shows results of a transient analysis of a horn. The mouth of the horn is mounted in an infinite rigid baffle. The piston at the throat has a single pulse prescribed as the displacement history.

An axisymmetric model is used. Acoustic finite elements model the air inside the horn and extend out to a spherical surface. Wave envelope elements then model the remainder of the half space.

This model is a specially created illustrative example, it is not a commercially available horn.

Axial displacemnt at horn throat v time

Pressure on axis of symmetry at horn mouth v time.