Attachment-line, cross-flow and Tollmien–Schlichting instabilities on swept ONERA-D and Joukowski airfoils

Autor: Euryale Kitzinger, Tristan Leclercq, Olivier Marquet, Estelle Piot, Denis Sipp

Publikováno v: Journal of Fluid Mechanics. 957

Linear stability analyses are performed to investigate the boundary layer instabilities developing in an incompressible flow around the whole leading-edge of swept ONERA-D and Joukowski airfoils of infinite span. The stability analyses conducted in o

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bfbea4ba42603f57b5f35f104d91280b
https://doi.org/10.1017/jfm.2023.38

High-Fidelity Simulations of the Flow Around T106C Cascade at Low Reynolds Number: The Effects of Freestream Turbulence and Stagger Angle

Autor: Antoine Dufau, Julien Marty, Daniel Man, Estelle Piot

Publikováno v: Volume 10B: Turbomachinery — Axial Flow Turbine Aerodynamics; Deposition, Erosion, Fouling, and Icing; Radial Turbomachinery Aerodynamics.

Flows in low-pressure turbines are highly dependent on the laminar-turbulent transition of the boundary layer and the separation of the laminar boundary layer. This study focuses on the flow around the T106C low-pressure turbine cascade blade for a l

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::98de10dd0269f518c1bd1f2ecba53114
https://doi.org/10.1115/gt2022-82109

Liner Impedance Eduction Under Shear Grazing Flow at a High Sound Pressure Level

Autor: Fabien Mery, Rémi Roncen, Frank Simon, Estelle Piot, Victor Lafont

Publikováno v: 25th AIAA/CEAS Aeroacoustics Conference
25th AIAA/CEAS Aeroacoustics Conference, May 2019, DELFT, Netherlands
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This paper investigates the combined effects of high sound pressure level and grazing flow on impedance eduction for classical liners. Experiments are conducted in the grazing flow duct at ONERA (B2A). The impedance is then educed with an inverse met

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8d869ee6a930351388f5beffa3bb0bac
https://doi.org/10.2514/1.j058756

Numerical Analysis of Porous Coatings Stabilizing Capabilities on Hypersonic Boundary-Layer Transition

Autor: Jean-Philippe Brazier, Romain Fiévet, Hugues Deniau, Estelle Piot

Publikováno v: AIAA Journal
AIAA Journal, American Institute of Aeronautics and Astronautics, 2021, 59 (10), pp.3845-3858. ⟨10.2514/1.J059830⟩
Fievet, R, Deniau, H, Brazier, J-P & Piot, E 2021, ' Numerical Analysis of Porous Coatings Stabilizing Capabilities on Hypersonic Boundary-Layer Transition ', AIAA Journal, vol. 59, no. 10, pp. 3845-3858 . https://doi.org/10.2514/1.J059830

Articles in Advance; International audience; A high-order spectral difference flow solver is used to perform direct numerical simulations (DNS) of a hypersonic laminar boundary layer on an ultrasonically absorptive coating (UAC), in order to analyze

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::75de4afe19a2ce6e6acd2228522a0b46
https://hal.archives-ouvertes.fr/hal-03280175/file/DMPE21070_postprint.pdf

Design and optimization of acoustic liners with a shear grazing flow: OPAL software platform description

Autor: Frank Simon, Rémi Roncen, Pierre Vuillemin, Patricia Klotz, Éric Savin, Fabien Méry, Estelle Piot

Publikováno v: InterNoise 2021
InterNoise 2021, Aug 2021, Washington, DC (Virtual event), United States. pp.IN21_1496
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International audience; In the context of aircraft noise reduction in varied applications where a cold or hot shear grazing flow is present (i.e., engine nacelle, combustion chamber, jet pump, landing gear), improved acoustic liner solutions are bein

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::08c6af1da0da1717bfd82633eab8c81f
https://hal.archives-ouvertes.fr/hal-03329066/file/DMPE21085_postprint.pdf