DOI: 10.1039/d6nr01160h ISSN: 2040-3364
High-efficiency directional thermoacoustic sound sources based on a local cold source
Zhikang Deng, Rongkuan Han, Peiyan Dong, Kaiyuan Tan, Jingzhi Wu, Chuting Liu, Xinyi Qu, Lvjie Chen, Jianfeng Ma, Yu Ran, Dalun Rong, Xudong Lin, Jianping Jiang, Jianhua Zhou, Yancong QiaoA local cold source enhances near-field thermoacoustic conversion, improving sound pressure and efficiency while enabling directional acoustic emission.