2D Modeling of Wave Propagation in Shallow Water by the Method of Characteristics
In this paper, a 2D numerical modeling of sound wave propagation in a shallow water medium that acts as a waveguide, are presented. This modeling is based on the method of characteristic which is not constrained by the Courant–Friedrichs–Lewy (CFL) condition. Using this method, the Euler time-depend...
| 發表在: | Archives of Acoustics |
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| 主要作者: | |
| 格式: | Article |
| 語言: | 英语 |
| 出版: |
Institute of Fundamental Technological Research Polish Academy of Sciences
2022-09-01
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| 主題: | |
| 在線閱讀: | https://journals.pan.pl/Content/124250/PDF/aoa.2022.142014.pdf |
| _version_ | 1849465579233083392 |
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| author | Mohammad Reza Khalilabadi |
| author_facet | Mohammad Reza Khalilabadi |
| author_sort | Mohammad Reza Khalilabadi |
| collection | DOAJ |
| container_title | Archives of Acoustics |
| description | In this paper, a 2D numerical modeling of sound wave propagation in a shallow water medium that acts as a waveguide, are presented. This modeling is based on the method of characteristic which is not constrained by the Courant–Friedrichs–Lewy (CFL) condition. Using this method, the Euler time-dependent equations have been solved under adiabatic conditions inside of a shallow water waveguide which is consists of one homogeneous environment of water over a rigid bed. In this work, the stability and precision of the method of characteristics (MOC) technique for sound wave propagation in a waveguide were illustrated when it was applied with the semi-Lagrange method. The results show a significant advantage of the method of characteristics over the finite difference time domain (FDTD) method. |
| format | Article |
| id | doaj-art-c81ef2a9cfb7446e9f1d75f3dfd7629f |
| institution | Directory of Open Access Journals |
| issn | 0137-5075 2300-262X |
| language | English |
| publishDate | 2022-09-01 |
| publisher | Institute of Fundamental Technological Research Polish Academy of Sciences |
| record_format | Article |
| spelling | doaj-art-c81ef2a9cfb7446e9f1d75f3dfd7629f2025-08-20T03:20:16ZengInstitute of Fundamental Technological Research Polish Academy of SciencesArchives of Acoustics0137-50752300-262X2022-09-01vol. 47No 3407412https://doi.org/10.24425/aoa.2022.1420142D Modeling of Wave Propagation in Shallow Water by the Method of CharacteristicsMohammad Reza Khalilabadi0Faculty of Naval Aviation, Malek Ashtar University of Technology, IranIn this paper, a 2D numerical modeling of sound wave propagation in a shallow water medium that acts as a waveguide, are presented. This modeling is based on the method of characteristic which is not constrained by the Courant–Friedrichs–Lewy (CFL) condition. Using this method, the Euler time-dependent equations have been solved under adiabatic conditions inside of a shallow water waveguide which is consists of one homogeneous environment of water over a rigid bed. In this work, the stability and precision of the method of characteristics (MOC) technique for sound wave propagation in a waveguide were illustrated when it was applied with the semi-Lagrange method. The results show a significant advantage of the method of characteristics over the finite difference time domain (FDTD) method.https://journals.pan.pl/Content/124250/PDF/aoa.2022.142014.pdfwave propagationshallow watermoc methodwaveguidetransmission loss |
| spellingShingle | Mohammad Reza Khalilabadi 2D Modeling of Wave Propagation in Shallow Water by the Method of Characteristics wave propagation shallow water moc method waveguide transmission loss |
| title | 2D Modeling of Wave Propagation in Shallow Water by the Method of Characteristics |
| title_full | 2D Modeling of Wave Propagation in Shallow Water by the Method of Characteristics |
| title_fullStr | 2D Modeling of Wave Propagation in Shallow Water by the Method of Characteristics |
| title_full_unstemmed | 2D Modeling of Wave Propagation in Shallow Water by the Method of Characteristics |
| title_short | 2D Modeling of Wave Propagation in Shallow Water by the Method of Characteristics |
| title_sort | 2d modeling of wave propagation in shallow water by the method of characteristics |
| topic | wave propagation shallow water moc method waveguide transmission loss |
| url | https://journals.pan.pl/Content/124250/PDF/aoa.2022.142014.pdf |
| work_keys_str_mv | AT mohammadrezakhalilabadi 2dmodelingofwavepropagationinshallowwaterbythemethodofcharacteristics |