Numerical Investigation on the Cavitating Flow and the Cavitation-induced Noise in the Pump-jet Propeller
The noise hazard posed by cavitation in pump-jet propellers is a significant concern during oceanic operations. This study evaluates the cavitation performance and associated noise characteristics of pump-jet propellers in underwater conditions, further examining the interplay between cavitation phe...
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| Format: | Article |
| Language: | English |
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Isfahan University of Technology
2024-12-01
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| Series: | Journal of Applied Fluid Mechanics |
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| Online Access: | https://www.jafmonline.net/article_2567_c8f919d0a0779aace7c38f0e689f0890.pdf |
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| author | P. Zhang J. Yuan Y. Fu X. Hou J. Hao |
| author_facet | P. Zhang J. Yuan Y. Fu X. Hou J. Hao |
| author_sort | P. Zhang |
| collection | DOAJ |
| description | The noise hazard posed by cavitation in pump-jet propellers is a significant concern during oceanic operations. This study evaluates the cavitation performance and associated noise characteristics of pump-jet propellers in underwater conditions, further examining the interplay between cavitation phenomena and noise radiation. Cavitation performance across varying advance coefficients was scrutinized using the k-ω SST turbulence model alongside the Zwart cavitation model. Employing Lighthill’s analogy method and bubble radiation theory, analyses of flow-induced noise and noise due to cavitation were conducted. The findings indicate an intensification of cavitation within the pump-jet with increased rotational speed and a reduction in cavitation number, aligning pressure and velocity distributions with observed cavitation patterns. Cavitation markedly elevates flow-induced noise levels, with noise under cavitation conditions found to be around 50 dB higher compared to non-cavitation conditions. Considering cavitation bubble radiation noise, the volumetric pulsations and their amplitudes in the pump-jet enlarge as the bubbles progress through initial growth to maturity. Predominantly, the noise levels from bubble volume pulsations occur within low to medium frequency ranges. |
| format | Article |
| id | doaj-art-7d445fa3904d4bf5b2fa2c77bbbe4073 |
| institution | OA Journals |
| issn | 1735-3572 1735-3645 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Isfahan University of Technology |
| record_format | Article |
| series | Journal of Applied Fluid Mechanics |
| spelling | doaj-art-7d445fa3904d4bf5b2fa2c77bbbe40732025-08-20T02:20:55ZengIsfahan University of TechnologyJournal of Applied Fluid Mechanics1735-35721735-36452024-12-0118241943710.47176/jafm.18.2.28132567Numerical Investigation on the Cavitating Flow and the Cavitation-induced Noise in the Pump-jet PropellerP. Zhang0J. Yuan1Y. Fu2X. Hou3J. Hao4National Research Center of Pump, Jiangsu University, Zhenjiang 212013, Jiangsu, ChinaNational Research Center of Pump, Jiangsu University, Zhenjiang 212013, Jiangsu, ChinaSchool of Energy and Power Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, ChinaNational Research Center of Pump, Jiangsu University, Zhenjiang 212013, Jiangsu, ChinaNational Research Center of Pump, Jiangsu University, Zhenjiang 212013, Jiangsu, ChinaThe noise hazard posed by cavitation in pump-jet propellers is a significant concern during oceanic operations. This study evaluates the cavitation performance and associated noise characteristics of pump-jet propellers in underwater conditions, further examining the interplay between cavitation phenomena and noise radiation. Cavitation performance across varying advance coefficients was scrutinized using the k-ω SST turbulence model alongside the Zwart cavitation model. Employing Lighthill’s analogy method and bubble radiation theory, analyses of flow-induced noise and noise due to cavitation were conducted. The findings indicate an intensification of cavitation within the pump-jet with increased rotational speed and a reduction in cavitation number, aligning pressure and velocity distributions with observed cavitation patterns. Cavitation markedly elevates flow-induced noise levels, with noise under cavitation conditions found to be around 50 dB higher compared to non-cavitation conditions. Considering cavitation bubble radiation noise, the volumetric pulsations and their amplitudes in the pump-jet enlarge as the bubbles progress through initial growth to maturity. Predominantly, the noise levels from bubble volume pulsations occur within low to medium frequency ranges.https://www.jafmonline.net/article_2567_c8f919d0a0779aace7c38f0e689f0890.pdfpump-jet propellernumerical simulationacoustic computingcavitationnoise |
| spellingShingle | P. Zhang J. Yuan Y. Fu X. Hou J. Hao Numerical Investigation on the Cavitating Flow and the Cavitation-induced Noise in the Pump-jet Propeller Journal of Applied Fluid Mechanics pump-jet propeller numerical simulation acoustic computing cavitation noise |
| title | Numerical Investigation on the Cavitating Flow and the Cavitation-induced Noise in the Pump-jet Propeller |
| title_full | Numerical Investigation on the Cavitating Flow and the Cavitation-induced Noise in the Pump-jet Propeller |
| title_fullStr | Numerical Investigation on the Cavitating Flow and the Cavitation-induced Noise in the Pump-jet Propeller |
| title_full_unstemmed | Numerical Investigation on the Cavitating Flow and the Cavitation-induced Noise in the Pump-jet Propeller |
| title_short | Numerical Investigation on the Cavitating Flow and the Cavitation-induced Noise in the Pump-jet Propeller |
| title_sort | numerical investigation on the cavitating flow and the cavitation induced noise in the pump jet propeller |
| topic | pump-jet propeller numerical simulation acoustic computing cavitation noise |
| url | https://www.jafmonline.net/article_2567_c8f919d0a0779aace7c38f0e689f0890.pdf |
| work_keys_str_mv | AT pzhang numericalinvestigationonthecavitatingflowandthecavitationinducednoiseinthepumpjetpropeller AT jyuan numericalinvestigationonthecavitatingflowandthecavitationinducednoiseinthepumpjetpropeller AT yfu numericalinvestigationonthecavitatingflowandthecavitationinducednoiseinthepumpjetpropeller AT xhou numericalinvestigationonthecavitatingflowandthecavitationinducednoiseinthepumpjetpropeller AT jhao numericalinvestigationonthecavitatingflowandthecavitationinducednoiseinthepumpjetpropeller |