Selection of a Suitable Wall Pressure Spectrum Model for Estimating Flow-Induced Noise in Sonar Applications
Flow-induced structural noise of a sonar dome in which the sonar transducer is housed, constitutes a major source of self-noise above a certain speed of the vessel. Excitation of the sonar dome structure by random pressure fluctuations in turbulent boundary layer flow leads to acoustic radiation int...
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| Format: | Article |
| Language: | English |
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Wiley
1995-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.3233/SAV-1995-2506 |
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| _version_ | 1849685861771247616 |
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| author | V. Bhujanga Rao |
| author_facet | V. Bhujanga Rao |
| author_sort | V. Bhujanga Rao |
| collection | DOAJ |
| description | Flow-induced structural noise of a sonar dome in which the sonar transducer is housed, constitutes a major source of self-noise above a certain speed of the vessel. Excitation of the sonar dome structure by random pressure fluctuations in turbulent boundary layer flow leads to acoustic radiation into the interior of the dome. This acoustic radiation is termed flow-induced structural noise. Such noise contributes significantly to sonar self-noise of submerged vessels cruising at high speed and plays an important role in surface ships, torpedos, and towed sonars as well. Various turbulent boundary layer wall pressure models published were analyzed and the most suitable analytical model for the sonar dome application selected while taking into account high frequency, fluid loading, low wave number contribution, and pressure gradient effects. These investigations included type of coupling that exists between turbulent boundary layer pressure fluctuations and dome wall structure of a typical sonar dome. Comparison of theoretical data with measured data onboard a ship are also reported. |
| format | Article |
| id | doaj-art-c7ae435f715a461bb03b8bfe677fb2ee |
| institution | DOAJ |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 1995-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-c7ae435f715a461bb03b8bfe677fb2ee2025-08-20T03:22:57ZengWileyShock and Vibration1070-96221875-92031995-01-012540341210.3233/SAV-1995-2506Selection of a Suitable Wall Pressure Spectrum Model for Estimating Flow-Induced Noise in Sonar ApplicationsV. Bhujanga Rao0Naval Science and Technological Laboratory, Visakhapatnam 530 027, IndiaFlow-induced structural noise of a sonar dome in which the sonar transducer is housed, constitutes a major source of self-noise above a certain speed of the vessel. Excitation of the sonar dome structure by random pressure fluctuations in turbulent boundary layer flow leads to acoustic radiation into the interior of the dome. This acoustic radiation is termed flow-induced structural noise. Such noise contributes significantly to sonar self-noise of submerged vessels cruising at high speed and plays an important role in surface ships, torpedos, and towed sonars as well. Various turbulent boundary layer wall pressure models published were analyzed and the most suitable analytical model for the sonar dome application selected while taking into account high frequency, fluid loading, low wave number contribution, and pressure gradient effects. These investigations included type of coupling that exists between turbulent boundary layer pressure fluctuations and dome wall structure of a typical sonar dome. Comparison of theoretical data with measured data onboard a ship are also reported.http://dx.doi.org/10.3233/SAV-1995-2506 |
| spellingShingle | V. Bhujanga Rao Selection of a Suitable Wall Pressure Spectrum Model for Estimating Flow-Induced Noise in Sonar Applications Shock and Vibration |
| title | Selection of a Suitable Wall Pressure Spectrum Model for Estimating Flow-Induced Noise in Sonar Applications |
| title_full | Selection of a Suitable Wall Pressure Spectrum Model for Estimating Flow-Induced Noise in Sonar Applications |
| title_fullStr | Selection of a Suitable Wall Pressure Spectrum Model for Estimating Flow-Induced Noise in Sonar Applications |
| title_full_unstemmed | Selection of a Suitable Wall Pressure Spectrum Model for Estimating Flow-Induced Noise in Sonar Applications |
| title_short | Selection of a Suitable Wall Pressure Spectrum Model for Estimating Flow-Induced Noise in Sonar Applications |
| title_sort | selection of a suitable wall pressure spectrum model for estimating flow induced noise in sonar applications |
| url | http://dx.doi.org/10.3233/SAV-1995-2506 |
| work_keys_str_mv | AT vbhujangarao selectionofasuitablewallpressurespectrummodelforestimatingflowinducednoiseinsonarapplications |