Numerical Simulation of Vortex-acoustic Coupled Acoustic Signals Based on Ray Acoustics

Yu, Ming; Zhang, Xuan; Zhang, Yongou; Wang, Zhihong

doi:10.1109/coa50123.2021.9520045

2021 OES China Ocean Acoustics (COA) 2021

DOI: 10.1109/coa50123.2021.9520045

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Numerical Simulation of Vortex-acoustic Coupled Acoustic Signals Based on Ray Acoustics

Ming Yu

Xuan Zhang

Yongou Zhang

et al.

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2024

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Cited by 1 publication

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A Method for Extracting Dynamic Vortex Acoustic Signal Characteristics in Island and Reef Channels Based on Time-Reversal Mirrors

Yu,

Liu,

Zhou

et al. 2024

Applied Sciences

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Ships navigating in channels with vortex fields face increased risks. However, these vortex fields can be monitored using acoustic methods. The key is to extract the phase characteristics of sound signals passing through the vortices. Using time-reversal mirrors, this paper studied the extraction method of characteristics both numerically and experimentally, aiming to verify the effectiveness of the numerical simulation method. Starting from this point, the impact of different movement forms and scale changes in vortex fields on the acoustic signal extraction method was further investigated. The results indicate that with the iterations of time reversal (N < 6), the method is effective for uniformly moving vortex fields, when the vortex center moving speed Vw < 2.2 × 10−3 m/s and the radius diffusion speed Vr < 2.5 × 10−3 m/s. On the other hand, for oscillating vortex fields, it is effective when the oscillation amplitude LD < 0.15 m and the radius diffusion speed Vr < 2.4 × 10−3 m/s; meanwhile, the dynamic characteristics of the vortex field can be ignored by the phase extraction method based on time-reversal mirrors.

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A Method for Extracting Dynamic Vortex Acoustic Signal Characteristics in Island and Reef Channels Based on Time-Reversal Mirrors

Yu,

Liu,

Zhou

et al. 2024

Applied Sciences

View full text Add to dashboard Cite

show abstract

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Numerical Simulation of Vortex-acoustic Coupled Acoustic Signals Based on Ray Acoustics

Cited by 1 publication

References 15 publications

A Method for Extracting Dynamic Vortex Acoustic Signal Characteristics in Island and Reef Channels Based on Time-Reversal Mirrors

A Method for Extracting Dynamic Vortex Acoustic Signal Characteristics in Island and Reef Channels Based on Time-Reversal Mirrors

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