Progress of the Identification of Noise Sources and Analysis of Noise Source Mechanisms in Jets
Jet noise is the dominating component of aircraft aerodynamic noise, and causes severe environmental pollution and health threats. Yet lack of a fundamental understanding of how turbulent eddies generate noise radiation poses great challenges in designing accurate noise prediction methodologies and...
| Main Authors: | , , |
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| Format: | Article |
| Language: | zho |
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Editorial Department of Advances in Aeronautical Science and Engineering
2020-02-01
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| Series: | Hangkong gongcheng jinzhan |
| Subjects: | |
| Online Access: | http://hkgcjz.cnjournals.com/hkgcjz/article/abstract/2019043?st=article_issue |
| _version_ | 1811186257030545408 |
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| author | ZHAI Chaohui LIU Yanchen DU Yongle |
| author_facet | ZHAI Chaohui LIU Yanchen DU Yongle |
| author_sort | ZHAI Chaohui |
| collection | DOAJ |
| description | Jet noise is the dominating component of aircraft aerodynamic noise, and causes severe environmental pollution and health threats. Yet lack of a fundamental understanding of how turbulent eddies generate noise radiation poses great challenges in designing accurate noise prediction methodologies and efficient noise reduction devices. The progresses and limitations of the studies on the turbulent noise source identification and noise source mechanisms in open literature are reviewed. Judging by the cause-effect reasoning that the turbulent fluctuations generate acoustic perturbations, it seems promising to develop physically more accurate models and governing equations to separate the acoustic and turbulent fluctuations in future research. By explicitly formulating the former as the generalized function of the latter, the dynamic process how turbulent eddies generate noise radiations is revealed. |
| first_indexed | 2024-04-11T13:43:32Z |
| format | Article |
| id | doaj.art-ed4555e0f0cf4aa490ecf4fa1683f9f8 |
| institution | Directory Open Access Journal |
| issn | 1674-8190 |
| language | zho |
| last_indexed | 2024-04-11T13:43:32Z |
| publishDate | 2020-02-01 |
| publisher | Editorial Department of Advances in Aeronautical Science and Engineering |
| record_format | Article |
| series | Hangkong gongcheng jinzhan |
| spelling | doaj.art-ed4555e0f0cf4aa490ecf4fa1683f9f82022-12-22T04:21:11ZzhoEditorial Department of Advances in Aeronautical Science and EngineeringHangkong gongcheng jinzhan1674-81902020-02-0111119,1910.16615/j.cnki.1674-8190.2020.01.00120200101Progress of the Identification of Noise Sources and Analysis of Noise Source Mechanisms in JetsZHAI Chaohui0LIU Yanchen1DU Yongle2School of Aeronautics, Northwestern Polytechnical University, Xi'an 710072, ChinaSchool of Aeronautics, Northwestern Polytechnical University, Xi'an 710072, ChinaSchool of Aeronautics, Northwestern Polytechnical University, Xi'an 710072, ChinaJet noise is the dominating component of aircraft aerodynamic noise, and causes severe environmental pollution and health threats. Yet lack of a fundamental understanding of how turbulent eddies generate noise radiation poses great challenges in designing accurate noise prediction methodologies and efficient noise reduction devices. The progresses and limitations of the studies on the turbulent noise source identification and noise source mechanisms in open literature are reviewed. Judging by the cause-effect reasoning that the turbulent fluctuations generate acoustic perturbations, it seems promising to develop physically more accurate models and governing equations to separate the acoustic and turbulent fluctuations in future research. By explicitly formulating the former as the generalized function of the latter, the dynamic process how turbulent eddies generate noise radiations is revealed.http://hkgcjz.cnjournals.com/hkgcjz/article/abstract/2019043?st=article_issueaerodynamic noisejet noisenoise source identificationsource mechanism analysis |
| spellingShingle | ZHAI Chaohui LIU Yanchen DU Yongle Progress of the Identification of Noise Sources and Analysis of Noise Source Mechanisms in Jets Hangkong gongcheng jinzhan aerodynamic noise jet noise noise source identification source mechanism analysis |
| title | Progress of the Identification of Noise Sources and Analysis of Noise Source Mechanisms in Jets |
| title_full | Progress of the Identification of Noise Sources and Analysis of Noise Source Mechanisms in Jets |
| title_fullStr | Progress of the Identification of Noise Sources and Analysis of Noise Source Mechanisms in Jets |
| title_full_unstemmed | Progress of the Identification of Noise Sources and Analysis of Noise Source Mechanisms in Jets |
| title_short | Progress of the Identification of Noise Sources and Analysis of Noise Source Mechanisms in Jets |
| title_sort | progress of the identification of noise sources and analysis of noise source mechanisms in jets |
| topic | aerodynamic noise jet noise noise source identification source mechanism analysis |
| url | http://hkgcjz.cnjournals.com/hkgcjz/article/abstract/2019043?st=article_issue |
| work_keys_str_mv | AT zhaichaohui progressoftheidentificationofnoisesourcesandanalysisofnoisesourcemechanismsinjets AT liuyanchen progressoftheidentificationofnoisesourcesandanalysisofnoisesourcemechanismsinjets AT duyongle progressoftheidentificationofnoisesourcesandanalysisofnoisesourcemechanismsinjets |