Investigation of Characteristics of Acoustic Emission Signals Resulting from a Subsea Gas Pipeline Leak

AbstractInvestigation of acoustic signals is crucial for detecting leaks in subsea gas pipelines and preventing economic losses. This study presents a three-dimensional (3D) computational fluid dynamics model for analyzing the acoustic characteristics of subsea gas pipeline leaks. The model consider...

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Bibliographic Details
Published in:Journal of pipeline systems 2025-02, Vol.16 (1)
Main Authors: Li, Xinhong, Wang, Chenyu, Zhang, Yuhang
Format: Article
Language:English
Subjects:
Acoustic emission
Acoustics
Computational fluid dynamics
Economic impact
Emission analysis
Fluid dynamics
Gas pipelines
Hole size
Hydrodynamics
Leak detection
Leaks
Pipelines
Sound pressure
Technical Papers
Three dimensional analysis
Underwater pipelines
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Summary:AbstractInvestigation of acoustic signals is crucial for detecting leaks in subsea gas pipelines and preventing economic losses. This study presents a three-dimensional (3D) computational fluid dynamics model for analyzing the acoustic characteristics of subsea gas pipeline leaks. The model considers different operating pressures, hole sizes, and shapes. The Ffowcs Williams and Hawkings model was employed to capture the acoustic characteristics of sonic waves generated by pipeline leaks. The impact of pipeline pressure, hole size, and shape on acoustic characteristics was examined focusing on low-frequency acoustic pressure, high-frequency acoustic pressure, and average acoustic pressure. The results indicated that the average sound pressure level increases with the higher pipeline operating pressure. For the circular leak holes, the average sound pressure level rises with increasing hole size, and leaks from circular holes exhibit the highest average sound pressure level. Additionally, the sound pressure level decreases as the frequency increases. The outcomes can help to understand the knowledge of underwater gas pipeline leak. Besides, it is the important inputs for developing the acoustic localization model of subsea gas pipeline leak.
ISSN:1949-1190
1949-1204
DOI:10.1061/JPSEA2.PSENG-1684