Title: Design and demonstration of an acoustic right-angle bend,
Abstract: In this paper, we design, fabricate and experimentally characterize a
broadband acoustic right-angle bend device in air. Perforated panels with
various hole-sizes are used to construct the bend structure. Both the simulated
and the experimental results verify that acoustic beam can be rotated
effectively through the acoustic bend in a wide frequency range. This model may
have potential applications in some areas such as sound absorption and acoustic
detection in pipeline.