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.
@article{arxiv.1701.06974,
title = {Design and demonstration of an acoustic right-angle bend},
author = {Wenjia Lu and Han Jia and Yafeng Bi and Yuzhen Yang and Jun Yang},
journal= {arXiv preprint arXiv:1701.06974},
year = {2017}
}