Conveners
A22.04 Propagation, Modeling and Simulation of Underwater Sound Fields: P434
- María Campo-Valera (Universidad Internacional de la Rioja)
- Dídac Diego-Tortosa (Institut de Ciències del Mar (ICM-CSIC))
A22.04 Propagation, Modeling and Simulation of Underwater Sound Fields: S159
- Dídac Diego-Tortosa (Institut de Ciències del Mar (ICM-CSIC))
- María Campo-Valera (Universidad Internacional de la Rioja)
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4651. Acoustic Leaky Waves Antenna for Underwater Applications: Analysis and Performance (FA2026/42)María Campo-Valera (Universidad Internacional de la Rioja)10/09/2026, 15:00A22 Underwater Acoustics
Acoustic Leaky Wave Antennas (ALWAs) offer an effective approach for directional sound radiation in underwater environments. This work analyzes their behavior in a fluid medium, focusing on fluid–structure interaction mechanisms that control acoustic leakage and beam steering. Key performance metrics, such as far-field radiation patterns, are assessed, demonstrating the potential of ALWAs for...
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Vineeth P R (DYSL-SM (DRDO))10/09/2026, 15:00A22 Underwater Acoustics
A novel underwater acoustic coating design is proposed based on a simplified periodic unit cell containing a single tilted cylindrical inclusion. Unlike conventional coatings employing vertically aligned cylindrical inclusions in compact unit cells, the present design introduces geometric asymmetry by orienting the inclusion at an angle within an enlarged unit cell, thereby modifying the...
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Lintai Rong (Northwestern Polytechnical University)10/09/2026, 15:00A22 Underwater Acoustics
The South China Sea (SCS) is one of the most active regions for the internal solitary wave (ISW). During the ISW propagation, strong sound-speed perturbations can be induced, leading to anomalous underwater acoustic propagation phenomena, which have a significant impact on hydroacoustic detection. To quantitatively asses these impacts, this study considers three representative ISW on the...
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Edward John (University of Sheffield)11/09/2026, 09:00A22 Underwater Acoustics
Detecting small, quiet leaks in viscoelastic water pipes (e.g. polyethylene, polyvinylchloride) using acoustic techniques is challenging due to the high rate of sound attenuation in these pipes and presence of background noise. This research explores monitoring the radial acoustic pressure gradient within the water column as a novel method of detecting small leaks in water distribution pipes....
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Jie Wu (Guangzhou Marine Laboratory)11/09/2026, 09:20A22 Underwater Acoustics
High-rate delay and motion estimation is important for maneuvering underwater platforms using direct-sequence spread-spectrum signals. Conventional frame- or symbol-level estimators provide limited temporal resolution, while direct differentiation of noisy delay measurements amplifies velocity-estimation errors. This paper proposes an adaptive delay-Doppler tracking method based on chip-level...
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Raúl Sanz-Ramírez (Universidad Politécnica de Madrid)11/09/2026, 09:40A22 Underwater Acoustics
Offshore wind turbines radiate continuous underwater noise during operation, yet predictive tools for assessing this structure-borne component are scarce. This study presents a physics-based vibroacoustic framework for a 10 MW monopile-supported turbine. Time.domain aero-hydro-servo-elastic simulations (OpenFAST) provide nodal accelerations, which are converted into equivalent dipole sources...
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Ignasi Nou-Plana (La Salle - URL)11/09/2026, 10:00A22 Underwater Acoustics
Laboratory water tanks are widely used to investigate the effects of underwater noise on aquatic organisms. However, small bounded volumes generate complex and highly reverberant acoustic fields, and the spatial distribution of sound inside experimental tanks is often insufficiently characterized prior to behavioural or physiological studies. As a result, the acoustic exposure experienced by...
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