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2018 AIAA/CEAS Aeroacoustics Conference最新文献

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Resonance and Tones in Dual-Stream Nozzles induced by vortex shedding from struts 支板旋涡脱落引起的双流喷嘴共振和音调
2018 AIAA/CEAS Aeroacoustics Conference Pub Date : 2018-06-24 DOI: 10.2514/6.2018-3939
I. Milanović, K. Zaman, C. Miller
{"title":"Resonance and Tones in Dual-Stream Nozzles induced by vortex shedding from struts","authors":"I. Milanović, K. Zaman, C. Miller","doi":"10.2514/6.2018-3939","DOIUrl":"https://doi.org/10.2514/6.2018-3939","url":null,"abstract":"","PeriodicalId":429337,"journal":{"name":"2018 AIAA/CEAS Aeroacoustics Conference","volume":"1 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":"131193383","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
Airfoil dual acoustic feedback mechanisms at low-to-moderate Reynolds number 低至中等雷诺数翼型双声反馈机制
2018 AIAA/CEAS Aeroacoustics Conference Pub Date : 2018-06-24 DOI: 10.2514/6.2018-3936
E. Arcondoulis, A. Zander, C. Doolan, Laura A. Brooks, Yu Liu
{"title":"Airfoil dual acoustic feedback mechanisms at low-to-moderate Reynolds number","authors":"E. Arcondoulis, A. Zander, C. Doolan, Laura A. Brooks, Yu Liu","doi":"10.2514/6.2018-3936","DOIUrl":"https://doi.org/10.2514/6.2018-3936","url":null,"abstract":"","PeriodicalId":429337,"journal":{"name":"2018 AIAA/CEAS Aeroacoustics Conference","volume":"1 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":"129505682","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: 2
Hydroelastic motions of flexible fibers 柔性纤维的水弹性运动
2018 AIAA/CEAS Aeroacoustics Conference Pub Date : 2018-06-24 DOI: 10.2514/6.2018-3786
J. Jaworski
{"title":"Hydroelastic motions of flexible fibers","authors":"J. Jaworski","doi":"10.2514/6.2018-3786","DOIUrl":"https://doi.org/10.2514/6.2018-3786","url":null,"abstract":"","PeriodicalId":429337,"journal":{"name":"2018 AIAA/CEAS Aeroacoustics Conference","volume":"1 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":"129275451","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
Community noise assessment for aircrafts with contra-rotating open rotor power plants 对转开式转子动力装置飞机的社区噪声评价
2018 AIAA/CEAS Aeroacoustics Conference Pub Date : 2018-06-24 DOI: 10.2514/6.2018-2819
L. Sanders
{"title":"Community noise assessment for aircrafts with contra-rotating open rotor power plants","authors":"L. Sanders","doi":"10.2514/6.2018-2819","DOIUrl":"https://doi.org/10.2514/6.2018-2819","url":null,"abstract":"","PeriodicalId":429337,"journal":{"name":"2018 AIAA/CEAS Aeroacoustics Conference","volume":"1 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":"130228899","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: 2
The Dynamic Response of a Pinhole Microphone under Flows of Varying Shear Stress 变剪应力流动下针孔传声器的动态响应
2018 AIAA/CEAS Aeroacoustics Conference Pub Date : 2018-06-24 DOI: 10.2514/6.2018-3933
N. A. Balantrapu, Russell J. Repasky, Liselle A. Joseph, W. Devenport
{"title":"The Dynamic Response of a Pinhole Microphone under Flows of Varying Shear Stress","authors":"N. A. Balantrapu, Russell J. Repasky, Liselle A. Joseph, W. Devenport","doi":"10.2514/6.2018-3933","DOIUrl":"https://doi.org/10.2514/6.2018-3933","url":null,"abstract":"","PeriodicalId":429337,"journal":{"name":"2018 AIAA/CEAS Aeroacoustics Conference","volume":"31 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":"127773442","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
On the sensitivity of the acoustics of short circular holes to inlet edge geometries 短圆孔声学对进口边缘几何形状的敏感性研究
2018 AIAA/CEAS Aeroacoustics Conference Pub Date : 2018-06-24 DOI: 10.2514/6.2018-3932
Dong Yang, J. Inigo, Holly G. Johnson, A. Morgans
{"title":"On the sensitivity of the acoustics of short circular holes to inlet edge geometries","authors":"Dong Yang, J. Inigo, Holly G. Johnson, A. Morgans","doi":"10.2514/6.2018-3932","DOIUrl":"https://doi.org/10.2514/6.2018-3932","url":null,"abstract":"Short circular holes with a low Mach number mean bias flow passing through them can absorb or generate acoustics. A recent semi-analytical model (Yang & Morgans, Journal of Sound and Vibration, 384 (2016) pp. 294-311 & 393 (2017) pp. 41-61) based on the Green’s function method has been shown to be able to capture both the acoustic absorption and generation. The model indicates the importance of accurately capturing the path of the shed vorticity from the hole inlet edge. In the present work, the effect of this vorticity path on the hole acoustics is first studied systematically using the semi-analytical model. As the vorticity path is sensitive to the sharpness of the hole inlet edge, CFD tools are then used to obtain the vortex sheet shape after slightly changing the hole inlet edge shape. The acoustic responses of these modified holes are obtained using the semi-analytical model. A slightly chamfered edge case and a small ellipse edge case are considered to show that a very small change to the shape of the hole inlet edge can give a significant difference in the hole acoustic response.","PeriodicalId":429337,"journal":{"name":"2018 AIAA/CEAS Aeroacoustics Conference","volume":"14 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":"128253530","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
Spatiotemporal-correlation analysis of jet noise from a round nozzle high-performance aircraft 高性能圆喷管飞机射流噪声的时空相关分析
2018 AIAA/CEAS Aeroacoustics Conference Pub Date : 2018-06-24 DOI: 10.2514/6.2018-3938
S. H. Swift, K. Gee, T. Neilsen, Alan T. Wall, J. Downing, Michael M. James
{"title":"Spatiotemporal-correlation analysis of jet noise from a round nozzle high-performance aircraft","authors":"S. H. Swift, K. Gee, T. Neilsen, Alan T. Wall, J. Downing, Michael M. James","doi":"10.2514/6.2018-3938","DOIUrl":"https://doi.org/10.2514/6.2018-3938","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":"128303949","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: 12
Characterization of Liners using a Lattice-Boltzmann Solver 用格子-玻尔兹曼解算器表征线性线
2018 AIAA/CEAS Aeroacoustics Conference Pub Date : 2018-06-24 DOI: 10.2514/6.2018-4192
P. Manjunath, F. Avallone, D. Casalino, D. Ragni, M. Snellen
{"title":"Characterization of Liners using a Lattice-Boltzmann Solver","authors":"P. Manjunath, F. Avallone, D. Casalino, D. Ragni, M. Snellen","doi":"10.2514/6.2018-4192","DOIUrl":"https://doi.org/10.2514/6.2018-4192","url":null,"abstract":"Acoustic liners are widely used as noise suppression devices, for example in aircraft engines. The effectiveness of the liners is measured through the impedance. In the present study, using a lattice-Boltzmann solver, the response of two liner geometries to grazing acoustic waves is examined. The two geometries have porosity equal to 0.99% and 6.89%, respectively. Impedance is computed using the traditional in-situ method. The results from the simulation are validated against previous experimental data, DNS data and predictions from semi-empirical models. Results show agreement with these reference data, allowing to use the computational setup for further analysis with a realistic liner configuration in the presence of a grazing flow.","PeriodicalId":429337,"journal":{"name":"2018 AIAA/CEAS Aeroacoustics Conference","volume":"1 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":"128731760","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: 7
Analysis of Fluid Insert Noise Reduction Method with PIV 基于PIV的流体插片降噪方法分析
2018 AIAA/CEAS Aeroacoustics Conference Pub Date : 2018-06-24 DOI: 10.2514/6.2018-3610
J. Morgan, Christopher Shoemaker, D. K. Mclaughlin, P. Morris, Z. Berger
{"title":"Analysis of Fluid Insert Noise Reduction Method with PIV","authors":"J. Morgan, Christopher Shoemaker, D. K. Mclaughlin, P. Morris, Z. Berger","doi":"10.2514/6.2018-3610","DOIUrl":"https://doi.org/10.2514/6.2018-3610","url":null,"abstract":"","PeriodicalId":429337,"journal":{"name":"2018 AIAA/CEAS Aeroacoustics Conference","volume":"98 1-3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114026126","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: 2
Effect of rounded corners on the flow and noise from a cube 圆角对立方体流动和噪声的影响
2018 AIAA/CEAS Aeroacoustics Conference Pub Date : 2018-06-24 DOI: 10.2514/6.2018-2960
Yanan Wang, David J. Thompson, Zhiwei Hu
{"title":"Effect of rounded corners on the flow and noise from a cube","authors":"Yanan Wang, David J. Thompson, Zhiwei Hu","doi":"10.2514/6.2018-2960","DOIUrl":"https://doi.org/10.2514/6.2018-2960","url":null,"abstract":"","PeriodicalId":429337,"journal":{"name":"2018 AIAA/CEAS Aeroacoustics Conference","volume":"181 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":"114305949","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
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