2025_programme: A Comparative Study of Source and Propagation Modeling for Underwater Acoustic Mapping

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  • Day: June 17, Tuesday
      Location / Time: C. THALIA at 11:40-12:00
  • Last minutes changes: -
  • Session: 22. Underwater noise in the EU Marine Strategy Framework Directive: implementation, monitoring, assessment and measures
    Organiser(s): Peter Sigray, Aristides Prospathopoulos, Emmanuel Skarsoulis
    Chairperson(s): Aristides Prospathopoulos, Emmanuel Skarsoulis
  • Lecture: A Comparative Study of Source and Propagation Modeling for Underwater Acoustic Mapping
    Paper ID: 2206
    Author(s): Marta Cianferra, Ines Addeo, Giovanni Petris, Vincenzo Armenio
    Presenter: Marta Cianferra
    Abstract: This study, conducted within the framework of the BluEcho project, presents a numerical investigation into underwater noise propagation, focusing on the evaluation of different source modeling approaches. \nVarious open-source solvers and in-house numerical codes are employed to simulate sources of different types, including complex multi-directional sources. The study explores how these source characteristics influence noise propagation, particularly in shallow waters, coastal areas, and port environments, where environmental and geometric constraints significantly affect acoustic transmission.\n\nThe numerical methodologies applied in this work to propagate the acoustic waves include finite difference, spectral element, and finite volume methods, each offering distinct advantages in terms of accuracy, computational efficiency, and applicability to complex scenarios. The wave equation is solved in the time domain, providing flexibility to capture a wide range of source properties, including source rotational effects, directivity patterns, and velocity variations. By comparing these approaches, the study identifies key strengths and limitations, offering insights into their suitability for different underwater acoustic applications.\n\nThis work represents a preliminary step toward the development of comprehensive noise propagation maps, the main purpose being to propose a benchmarking framework. In this regard, the study facilitates the evaluation of additional numerical models and aims to enhance predictive capabilities in specific real-world scenarios. Also, the study supports the development of robust and adaptable numerical tools within an open-source scenario.
  • Corresponding author: Dr Marta Cianferra
    Affiliation: University of Trieste
    Country: Italy

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