**43**, 1, pp. 49–60, 2018

**10.24425/118079**

### Sound Radiation by a Cylindrical Open Cavity with a Surface Source at the Bottom

The approximated formula of a high computational efficiency has been presented for the sound pressure in the far field. The sound radiation has been analyzed for a rectangular piston as a sound source. The influence of cavity depth ratio on the radiation efficiency has been investigated. The cases for which the cavity radiation efficiency can be approximately calculated from the formula valid for a baffled sound source have been determined.

**Keywords**: open cylindrical cavity; sound pressure; sound power; continuity conditions

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DOI: 10.24425/118079