Theoretical analyses of sound attenuation in acoustically lined flow ducts separated by porous splitters (rectangular, annular and circular ducts)

Analysis for sound attenuation in the ac

Analysis for sound attenuation in the acoustically lined annular flow duct separated by an elastic circumferential splitter

✍ S.-H. Ko 📂 Article 📅 1974 🏛 Elsevier Science 🌐 English ⚖ 562 KB

A theoretical investigation is made of the sound attenuation in an acoustically lined annular duct, the inner and outer walls of which are separated by a concentric circumferential splitter parallel to the inviscid fluid flow. The splitter is considered as an elastic solid medium. An eigenvalue prob