| dc.date | 2015 | |
| dc.date | 2016-06-03T20:13:59Z | |
| dc.date | 2016-06-03T20:13:59Z | |
| dc.date.accessioned | 2018-03-29T01:32:58Z | |
| dc.date.available | 2018-03-29T01:32:58Z | |
| dc.identifier | 9788494392825 | |
| dc.identifier | Panacm 2015 - 1st Pan-american Congress On Computational Mechanics, In Conjunction With The 11th Argentine Congress On Computational Mechanics, Mecom 2015. International Center For Numerical Methods In Engineering, p. 1411 - 1422, 2015. | |
| dc.identifier | | |
| dc.identifier | | |
| dc.identifier | http://www.scopus.com/inward/record.url?eid=2-s2.0-84938702738&partnerID=40&md5=cd2bd00942c648142fa3e43dec79ee74 | |
| dc.identifier | http://repositorio.unicamp.br/jspui/handle/REPOSIP/238151 | |
| dc.identifier | 2-s2.0-84938702738 | |
| dc.identifier.uri | http://repositorioslatinoamericanos.uchile.cl/handle/2250/1304812 | |
| dc.description | Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) | |
| dc.description | Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) | |
| dc.description | Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) | |
| dc.description | This work presents further results of the effects of trailing edge bluntness on airfoil tonal noise generation and propagation at low and moderate Reynolds numbers. Here, several simulations are conducted for a NACA 0012 airfoil at different free-stream Mach numbers. The effects of compressibility on sound generation and propagation are analyzed along with the effects of scattering by blunt trailing edges with different radii of curvature. Sound generation is computed by a hybrid method and an accurate two-dimensional direct calculation, and results are compared. The hybrid approach uses direct calculation for near-field source computations and the Ffowcs Williams-Hawkings equation as the acoustic analogy formulation. Numerical results show that the airfoil emits an intense "narrowband" tone and that a thicker trailing edge emits higher noise levels than a thinner one since the magnitude of quadrupole sources are larger for the thicker configuration. At moderate Reynolds numbers, several tonal peaks are superimposed on a broadband spectrum for the thinner trailing edge investigated. For the blunter trailing edge, a tonal noise spectrum is shown. | |
| dc.description | | |
| dc.description | | |
| dc.description | 1411 | |
| dc.description | 1422 | |
| dc.description | 2013/03413-4, FAPESP, Fundação de Amparo à Pesquisa do Estado de São Paulo | |
| dc.description | 2013/07375-0, FAPESP, Fundação de Amparo à Pesquisa do Estado de São Paulo | |
| dc.description | 2014/10166-6, FAPESP, Fundação de Amparo à Pesquisa do Estado de São Paulo | |
| dc.description | Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) | |
| dc.description | Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) | |
| dc.description | Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) | |
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| dc.description | Arias Ramirez, W., Wolf, W.R., Effects of trailing edge bluntness on airfoil tonal noise at low reynolds numbers (2015) Journal of the Brazilian Society OfMechanical Sciences and Engineering | |
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| dc.description | Wolf, W.R., Lele, S., Acoustic analogy formulations accelerated by fast multipole method for two-dimensional (2010) AIAA Journal, 48, pp. 2274-2285 | |
| dc.description | 1st Pan-American Congress on Computational Mechanics, PANACM 2015 and the 11th Argentine Congress on Computational Mechanics, MECOM 2015 | |
| dc.description | 27 April 2015 through 29 April 2015 | |
| dc.language | en | |
| dc.publisher | International Center for Numerical Methods in Engineering | |
| dc.relation | PANACM 2015 - 1st Pan-American Congress on Computational Mechanics, in conjunction with the 11th Argentine Congress on Computational Mechanics, MECOM 2015 | |
| dc.rights | fechado | |
| dc.source | Scopus | |
| dc.title | A Numerical Study Of The Effects Of Trailing Edge Bluntness On Airfoil Tonal Noise | |
| dc.type | Actas de congresos | |
