Chen Wangqiao, Zhong Siyang, Huang Xun
Department of Mechanical and Aerospace Engineering, The Hong Kong University of Science and Technology, Hong Kong SAR, China.
Department of Aeronautical and Aviation Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR, China.
Sci Adv. 2024 Sep 6;10(36):eado8422. doi: 10.1126/sciadv.ado8422.
This study experimentally demonstrates the coexistence and transition between weak and strong wave turbulence during the interaction of acoustic waves and turbulent flows. We identify conditions under which different wave turbulence regimes occur based on the wave number of the turbulent flow and acoustic waves. As the sound frequency increases, strong wave turbulence dominates, requiring a specific scaling factor to reconcile the spectra with the weak turbulence theory. Our analysis using the wave turbulence framework is confirmed by experimental results, providing deep insights into the complex interaction between acoustics and turbulence.
本研究通过实验证明了声波与湍流相互作用过程中弱波湍流和强波湍流的共存与转变。我们根据湍流和声波的波数确定了不同波湍流状态出现的条件。随着声频增加，强波湍流占主导，需要一个特定的比例因子来使频谱与弱湍流理论相协调。我们使用波湍流框架进行的分析得到了实验结果的证实，为声学与湍流之间的复杂相互作用提供了深刻见解。
