中国物理B ›› 2016, Vol. 25 ›› Issue (12): 124317-124317.doi: 10.1088/1674-1056/25/12/124317
• SPECIAL TOPIC—Acoustics • 上一篇 下一篇
Jing-Yan Wang(王璟琰), Feng-Hua Li(李风华)
Jing-Yan Wang(王璟琰), Feng-Hua Li(李风华)
摘要:
Ocean noise recorded during a typhoon can be used to monitor the typhoon and investigate the mechanism of the wind-generated noise. An analytical expression for the typhoon-generated noise intensity is derived as a function of wind speed. A“bi-peak”structure was observed in an experiment during which typhoon-generated noise was recorded. Wind speed dependence and frequency dependence were also observed in the frequency range of 100 Hz-1000 Hz. The model/data comparison shows that results of the present model of 500 Hz and 1000 Hz are in reasonable agreement with the experimental data, and the typhoon-generated noise intensity has a dependence on frequency and a power-law dependence on wind speed.
中图分类号: (Noise in water; generation mechanisms and characteristics of the field)