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2018 AIAA/CEAS Aeroacoustics Conference最新文献

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Correction: Acoustic emission from one-dimensional vibrating porous panels in a single-sided flow 修正:单面流中一维振动多孔板的声发射
2018 AIAA/CEAS Aeroacoustics Conference Pub Date : 2018-06-25 DOI: 10.2514/6.2018-2962.C1
Rozhin Hajian, J. Jaworski, S. Grace
{"title":"Correction: Acoustic emission from one-dimensional vibrating porous panels in a single-sided flow","authors":"Rozhin Hajian, J. Jaworski, S. Grace","doi":"10.2514/6.2018-2962.C1","DOIUrl":"https://doi.org/10.2514/6.2018-2962.C1","url":null,"abstract":"","PeriodicalId":429337,"journal":{"name":"2018 AIAA/CEAS Aeroacoustics Conference","volume":"115 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129124312","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Correction: Aeroacoustic airfoil shape optimization utilizing semi-empirical models for trailing edge noise prediction 修正:气动声学翼型形状优化利用半经验模型的后缘噪声预测
2018 AIAA/CEAS Aeroacoustics Conference Pub Date : 2018-06-25 DOI: 10.2514/6.2018-3130.C1
K. Volkmer, T. Carolus
{"title":"Correction: Aeroacoustic airfoil shape optimization utilizing semi-empirical models for trailing edge noise prediction","authors":"K. Volkmer, T. Carolus","doi":"10.2514/6.2018-3130.C1","DOIUrl":"https://doi.org/10.2514/6.2018-3130.C1","url":null,"abstract":"","PeriodicalId":429337,"journal":{"name":"2018 AIAA/CEAS Aeroacoustics Conference","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126349987","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Correction: Dynamic Hybrid RANS/LES Assessment of Sound Generation and Propagation for Flow Over a Circular Cylinder 修正:流动在圆柱上的声音产生和传播的动态混合RANS/LES评估
2018 AIAA/CEAS Aeroacoustics Conference Pub Date : 2018-06-25 DOI: 10.2514/6.2018-3592.C1
Xiao Wang, S. Bhushan, B. Manshoor, E. Luke, A. Sescu, Y. Hattori, D. Thompson, K. Walters
{"title":"Correction: Dynamic Hybrid RANS/LES Assessment of Sound Generation and Propagation for Flow Over a Circular Cylinder","authors":"Xiao Wang, S. Bhushan, B. Manshoor, E. Luke, A. Sescu, Y. Hattori, D. Thompson, K. Walters","doi":"10.2514/6.2018-3592.C1","DOIUrl":"https://doi.org/10.2514/6.2018-3592.C1","url":null,"abstract":"","PeriodicalId":429337,"journal":{"name":"2018 AIAA/CEAS Aeroacoustics Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124932307","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Prediction of installed jet noise due to swept wings 后掠翼引起的安装射流噪声预测
2018 AIAA/CEAS Aeroacoustics Conference Pub Date : 2018-06-24 DOI: 10.2514/6.2018-2980
B. Lyu, A. Dowling
{"title":"Prediction of installed jet noise due to swept wings","authors":"B. Lyu, A. Dowling","doi":"10.2514/6.2018-2980","DOIUrl":"https://doi.org/10.2514/6.2018-2980","url":null,"abstract":"© 2018 by the American Institute of Aeronautics and Astronautics, Inc. All rights reserved. An analytical model is developed in this paper to model the sound due to the scattering of instability waves by an aircraft wing with a swept trailing edge. The model is based on the Schwartzchild method and Amiet's approach is used to obtain the far-field sound. The model can correctly predict both the reduction in installed jet noise and the change to directivity patterns observed in experiments due to the use of swept wings. The agreement between the model and experiment is very good, especially for the directivity at large azimuthal angles. It is found that the principle physical mechanism of sound reduction is the destructive interference effect. It is concluded that in order to obtain an effective noise reduction, both the span and the swept angle of the wing have to be large.","PeriodicalId":429337,"journal":{"name":"2018 AIAA/CEAS Aeroacoustics Conference","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116904084","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Improvement of the Near Wall Treatment in Large Eddy Simulation for Aeroacoustic Applications 航空声学大涡模拟中近壁处理的改进
2018 AIAA/CEAS Aeroacoustics Conference Pub Date : 2018-06-24 DOI: 10.2514/6.2018-3795
Chaofan Zhang, M. Sanjosé, S. Moreau
{"title":"Improvement of the Near Wall Treatment in Large Eddy Simulation for Aeroacoustic Applications","authors":"Chaofan Zhang, M. Sanjosé, S. Moreau","doi":"10.2514/6.2018-3795","DOIUrl":"https://doi.org/10.2514/6.2018-3795","url":null,"abstract":"","PeriodicalId":429337,"journal":{"name":"2018 AIAA/CEAS Aeroacoustics Conference","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117172139","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
An experimental investigation of trailing-edge noise reduction due to elasticity 基于弹性的尾缘降噪实验研究
2018 AIAA/CEAS Aeroacoustics Conference Pub Date : 2018-06-24 DOI: 10.2514/6.2018-2802
M. Nilton, Yasir Malik, A. Cavalieri, L. D. Santana, M. Donadon, W. Wolf, Cristiano Pimenta
{"title":"An experimental investigation of trailing-edge noise reduction due to elasticity","authors":"M. Nilton, Yasir Malik, A. Cavalieri, L. D. Santana, M. Donadon, W. Wolf, Cristiano Pimenta","doi":"10.2514/6.2018-2802","DOIUrl":"https://doi.org/10.2514/6.2018-2802","url":null,"abstract":"The proximity of the source and an edge can make the acoustic scattering by wings a significant source of aerodynamic sound. Theoretical results have shown that elastic edges lead to reductions of acoustic scattering; however, experimental confirmation of theoretical trends is difficult, since surface vibrations modify both the source structure and the scattering properties. A simplified, controlled setting for measurements of acoustic scattering, allowing the evaluation of fluid-structure interactions, would thus be desirable to study how elastic edges modify the radiated sound. We present an experimental procedure to isolate the scattered field using a loudspeaker in the vicinity of at plates. The methodology is applied to three different plates, made of steel, aluminum and carbon fiber, as a demonstration. The responses of these elastic plates are studied for a sound source of dipole type near the trailing edge. The method is based on the experimental determination of frequency response functions between source and radiated sound for experiments with and without the plate; subtraction of results, accounting for amplitude and phase, isolates the scattered field. Experimental results treated with the developed procedure were compared with predictions made by numerical simulations performed with a Boundary Element Method (BEM), coupling the acoustic problem with the plate vibration. The comparison between experimental and numerical results revealed that a two-dimensional model can predict satisfactorily the reductions in scattered field by elastic plates observed in the experiment. The present methods can be used to support the choice between different materials for edges focusing on their respective acoustic benefit.","PeriodicalId":429337,"journal":{"name":"2018 AIAA/CEAS Aeroacoustics Conference","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117226141","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Further Noise Reduction Design for Landing Gear toward FQUROH Second Flight Demonstration 面向FQUROH第二次飞行演示的起落架降噪设计
2018 AIAA/CEAS Aeroacoustics Conference Pub Date : 2018-06-24 DOI: 10.2514/6.2018-3300
T. Takaishi, Toshiyuki Kumada, Y. Yokokawa, Yasushi Ito, M. Murayama, Ryotaro Sakai, Akihisa Shimada, K. Yamamoto
{"title":"Further Noise Reduction Design for Landing Gear toward FQUROH Second Flight Demonstration","authors":"T. Takaishi, Toshiyuki Kumada, Y. Yokokawa, Yasushi Ito, M. Murayama, Ryotaro Sakai, Akihisa Shimada, K. Yamamoto","doi":"10.2514/6.2018-3300","DOIUrl":"https://doi.org/10.2514/6.2018-3300","url":null,"abstract":"","PeriodicalId":429337,"journal":{"name":"2018 AIAA/CEAS Aeroacoustics Conference","volume":"32 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120917127","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 10
GPU CABARET Solutions for the CoJen Jet Noise Experiment GPU CABARET解决方案的CoJen射流噪声实验
2018 AIAA/CEAS Aeroacoustics Conference Pub Date : 2018-06-24 DOI: 10.2514/6.2018-3921
A. Markesteijn, S. Karabasov
{"title":"GPU CABARET Solutions for the CoJen Jet Noise Experiment","authors":"A. Markesteijn, S. Karabasov","doi":"10.2514/6.2018-3921","DOIUrl":"https://doi.org/10.2514/6.2018-3921","url":null,"abstract":"","PeriodicalId":429337,"journal":{"name":"2018 AIAA/CEAS Aeroacoustics Conference","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125044971","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 9
Acoustic Radiation of Subsonic Jets at the Vicinity of an Inclined Flat Plate 倾斜平板附近亚音速射流的声辐射
2018 AIAA/CEAS Aeroacoustics Conference Pub Date : 2018-06-24 DOI: 10.2514/6.2018-2976
P. Nogueira, José R. L. N. Sirotto, Renato F. Miotto, A. Cavalieri, J. Cordioli, W. Wolf
{"title":"Acoustic Radiation of Subsonic Jets at the Vicinity of an Inclined Flat Plate","authors":"P. Nogueira, José R. L. N. Sirotto, Renato F. Miotto, A. Cavalieri, J. Cordioli, W. Wolf","doi":"10.2514/6.2018-2976","DOIUrl":"https://doi.org/10.2514/6.2018-2976","url":null,"abstract":"","PeriodicalId":429337,"journal":{"name":"2018 AIAA/CEAS Aeroacoustics Conference","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125998427","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Statistics and structure of turbulence in fan/FEGV interstage and their aeroacoustic implications 风扇/FEGV级间湍流的统计和结构及其气动声学意义
2018 AIAA/CEAS Aeroacoustics Conference Pub Date : 2018-06-24 DOI: 10.2514/6.2018-4186
S. Grace, Ankush Gupta, Ignacio Gonzalez-Martino, D. Casalino
{"title":"Statistics and structure of turbulence in fan/FEGV interstage and their aeroacoustic implications","authors":"S. Grace, Ankush Gupta, Ignacio Gonzalez-Martino, D. Casalino","doi":"10.2514/6.2018-4186","DOIUrl":"https://doi.org/10.2514/6.2018-4186","url":null,"abstract":"","PeriodicalId":429337,"journal":{"name":"2018 AIAA/CEAS Aeroacoustics Conference","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126154777","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
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