Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Ariane Emmanuelli"'
Publikováno v:
INTER-NOISE and NOISE-CON Congress and Conference Proceedings. 265:6150-6155
Acceptability of supersonic transportation by population requires an accurate prediction of ground noise levels generated by sonic boom. This study aims at predicting sonic boom propagation over urban areas. For this purpose, numerical simulations ar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4eee3f6b2a039f688e6237b967d058aa
https://doi.org/10.3397/in_2022_0915
https://doi.org/10.3397/in_2022_0915
Publikováno v:
Journal of the Acoustical Society of America
Journal of the Acoustical Society of America, 2022, 152, pp.3323-3339. ⟨10.1121/10.0016442⟩
Journal of the Acoustical Society of America, 2022, 152, pp.3323-3339. ⟨10.1121/10.0016442⟩
Sonic boom propagation over urban areas is studied using numerical simulations based on the Euler equations. Two boom waves are examined: a classical N-wave and a low-boom wave. Ten urban geometries, generated from the local climate zone classificati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::03c4f9fd7d2b69ec8e4d3cd2fba24e56
https://hal.science/hal-03888620/document
https://hal.science/hal-03888620/document
Publikováno v:
Shock Waves. 31:379-398
Spherical weak blast propagation above a rough periodic surface is investigated by performing numerical simulations of the Euler equations. The study of the reflection pattern shows that waves diffracted by the surface asperities merge to form an eff
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1dbb8a4bcc30057a1e5582b2766b4a7b
https://doi.org/10.1007/s00193-021-01024-8
https://doi.org/10.1007/s00193-021-01024-8
Publikováno v:
Journal of the Acoustical Society of America
Journal of the Acoustical Society of America, 2022, 151, pp.3792-3806. ⟨10.1121/10.0010452⟩
Journal of the Acoustical Society of America, 2022, 151, pp.3792-3806. ⟨10.1121/10.0010452⟩
Sonic boom reflection is investigated over an isolated building and multiple buildings using numerical simulations. For that, the two-dimensional Euler equations are solved using high-order finite-difference techniques. Three urban geometries are con
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5bf6001a657fda5fcc5c8ce60946390c
https://hal.science/hal-03853864/file/dragna_jasa22.pdf
https://hal.science/hal-03853864/file/dragna_jasa22.pdf
Publikováno v:
AIAA/CEAS Aeroacoustics Conference
A good understanding of wind turbine noise propagation is relevant to better measure the impact of turbines on the environment. In this study, we developed numerical simulations to study the impact of a 2D hill on the sound propagation for a turbine
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0026a47617757318adae2a9c145a123c
Publikováno v:
The Journal of the Acoustical Society of America. 151:A86-A86
This study aims at analyzing sonic boom reflection over realistic urban areas. For this purpose, numerical simulations are performed. The 2D Euler equations are solved using high-order finite-difference methods, following Emmanuelli et al. [ J. Acous
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::231c90bfc126007bed43723fee6d9d4b
https://doi.org/10.1121/10.0010741
https://doi.org/10.1121/10.0010741
Autor:
Sébastien Ducruix, Maxime Huet, Jun Zheng, Alexis Giauque, Ariane Emmanuelli, Thomas Le Garrec
Publikováno v:
Journal of Sound and Vibration
Journal of Sound and Vibration, Elsevier, 2020, 472, pp.115163. ⟨10.1016/j.jsv.2019.115163⟩
Journal of Sound and Vibration, Elsevier, 2020, 472, pp.115163. ⟨10.1016/j.jsv.2019.115163⟩
International audience; Entropy noise corresponds to acoustic uctuations generated inside gas-turbine engines when temperature (entropy) spots are accelerated by the mean ow. This type of noise currently faces growing interest because of its contribu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::da2d7502cb3387355003893c07d38638
https://hal.archives-ouvertes.fr/hal-02864423/file/DAAA20032.pdf
https://hal.archives-ouvertes.fr/hal-02864423/file/DAAA20032.pdf
Publikováno v:
Journal of Sound and Vibration
Journal of Sound and Vibration, Elsevier, 2020, pp.115637. ⟨10.1016/j.jsv.2020.115637⟩
Journal of Sound and Vibration, Elsevier, 2020, pp.115637. ⟨10.1016/j.jsv.2020.115637⟩
International audience; Entropy noise is produced when temperature fluctuations (entropy spots) are accelerated by the mean flow, through a nozzle or a turbine stage for instance. When it propagates outside the engine it contributes to community nois
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e46316317aefcf2be015279990a2f12d
https://hal.archives-ouvertes.fr/hal-02966578/document
https://hal.archives-ouvertes.fr/hal-02966578/document
Publikováno v:
Journal of Sound and Vibration
Journal of Sound and Vibration, Elsevier, 2021, 510, pp.116293. ⟨10.1016/j.jsv.2021.116293⟩
Journal of Sound and Vibration, Elsevier, 2021, 510, pp.116293. ⟨10.1016/j.jsv.2021.116293⟩
International audience; Entropy (temperature) fluctuations produced by turbulent flames generate noise when they are accelerated by the flow. This so-called entropy noise is an important contributor to core noise in modern aeroengines and several sem
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::88f062a53ebf75d86eb9293903b0626d
https://doi.org/10.1016/j.jsv.2021.116293
https://doi.org/10.1016/j.jsv.2021.116293
Publikováno v:
The Journal of the Acoustical Society of America
Impact of a real terrain on the sonic boom signature at the ground has been little studied in the literature. In the current prediction schemes, a flat and perfectly reflecting ground is usually assumed and the reflected boom is obtained by multiplyi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::54e13258a027eb2e93d7a54573f0d380