Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Abel Faure-Beaulieu"'
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-10 (2024)
Abstract Breaking the reciprocity of wave propagation is a problem of fundamental interest, and a much-sought functionality in practical applications, both in photonics and phononics. Although it has been achieved using resonant linear scattering fro
Externí odkaz:
https://doaj.org/article/86218c2a1dc647429c3b49f17c2c824a
Autor:
Abel Faure-Beaulieu, Nicolas Noiray
Publikováno v:
Physical Review Fluids. 7
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d5185547e5d160814c0a6a73dca7d3cf
https://doi.org/10.1103/physrevfluids.7.099901
https://doi.org/10.1103/physrevfluids.7.099901
Publikováno v:
Journal of Fluid Mechanics, 944
This article deals with the symmetry breaking of azimuthal thermoacoustic modes in annular combustors. Using a nominally symmetric annular combustor, we present experimental evidence of a predicted spontaneous reflectional symmetry breaking, and also
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7ce29500dd0229e0145c0ebdafedd972
https://doi.org/10.1017/jfm.2022.468
https://doi.org/10.1017/jfm.2022.468
Publikováno v:
Proceedings of the Combustion Institute, 38 (4)
Proceedings of the Combustion Institute
Proceedings of the Combustion Institute
Proceedings of the Combustion Institute, 38 (4)
ISSN:1540-7489
ISSN:1873-2704
ISSN:1540-7489
ISSN:1873-2704
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e79a6bfb9e8a9daa556d2e422becc04c
https://doi.org/10.1016/j.proci.2020.05.008
https://doi.org/10.1016/j.proci.2020.05.008
Publikováno v:
Combustion and Flame, 223
Combustion and Flame
Combustion and Flame
Self-excited thermoacoustic instabilities in symmetric annular combustion chambers typically give rise to spinning, standing and mixed azimuthal modes which are time-varying in nature and occur in a highly noisy environment due to turbulent combustio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::673b23d414c83c52eb4fad0324bc30f1
https://doi.org/10.1016/j.combustflame.2020.10.013
https://doi.org/10.1016/j.combustflame.2020.10.013
Publikováno v:
Journal of Fluid Mechanics, 925
Journal of Fluid Mechanics
Journal of Fluid Mechanics
In jet engines and gas turbines, the annular shape of the combustion chamber allows the appearance of self-oscillating azimuthal thermoacoustic modes. We report experimental evidence of a new type of modal dynamics characterised by periodic switching
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::320b17a0f6c4c01a8cbd8fe5fd5192bd
https://doi.org/10.1017/jfm.2021.649
https://doi.org/10.1017/jfm.2021.649
Publikováno v:
Physical Review Fluids, 6 (2)
Physical Review Fluids
Physical Review Fluids
Hydrodynamic modes in the turbulent mixing layer over a cavity can constructively interact with the acoustic modes of that cavity and lead to aeroacoustic instabilities. The resulting limit cycles can cause undesired structural vibrations or noise po
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::86ed58bed8bcb4514949505890ff9ded
https://doi.org/10.1103/physrevfluids.6.023903
https://doi.org/10.1103/physrevfluids.6.023903
Publikováno v:
Journal of Fluid Mechanics, 909
Journal of Fluid Mechanics
Journal of Fluid Mechanics
In this work, the classic problem of the aeroacoustic instability occurring in deep cavities subject to a low-Mach grazing flow is revisited experimentally and theoretically. This instability is caused by the constructive feedback between the acousti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::27c77eb2277bf7ed43d4d5bf2ae57140
Autor:
Abel Faure-Beaulieu, Nicolas Noiray
Publikováno v:
Physical Review Fluids, 5 (2)
Physical Review Fluids
Physical Review Fluids
Depending on the reflectional and rotational symmetries of annular combustors for aeroengines and gas turbines, self-sustained azimuthal thermoacoustic eigenmodes can be standing, spinning or mix of these two types of waves. These thermoacoustic limi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::29930f41069b671665c49c24acec3bb4