Zobrazeno 1 - 10 of 24 pro vyhledávání: '"Hugues Deniau"'
1
Acoustic Mode Attenuation in Ducts (Using CFD) with Time-Domain Impedance Boundary Condition
Autor: Loris Casadei, Hugues Deniau, Thomas Nodé-Langlois, Estelle Piot, Cyril Polacsek
Publikováno v: AIAA Journal. 60:6763-6782
In the framework of improving aircraft nacelle design to comply international regulation on aircraft noise, a time-domain impedance boundary condition (TDIBC) based on the oscillo-diffusive representation is implemented in an industrial computational
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f9a53ac14532e5336f97306c3feedccb
https://doi.org/10.2514/1.j061879
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2
Extension of the Spectral Difference method to premixed laminar and turbulent combustion
Autor: Thomas Marchal, Hugues Deniau, Jean-François Boussuge, Bénédicte Cuenot, Renaud Mercier
A Spectral Difference (SD) algorithm on tensor-product elements which solves the reacting compressible Navier-Stokes equations is presented. The classical SD algorithm is shown to be unstable when a multi-species gas where thermodynamic properties de
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5a76b3c01e78990662fd3f7918f93cf1
https://doi.org/10.21203/rs.3.rs-2340880/v1
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5
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
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6
Towards sound absorption in a cylindrical lined duct using CFD with time-domain impedance boundary condition
Autor: Estelle Piot, Loris Casadei, Thomas Node-Langlois, Cyril Polacsek, Hugues Deniau
Publikováno v: AIAA Aviation 2021 Forum-Session: Duct Acoustics V
AIAA Aviation 2021 Forum
AIAA Aviation 2021 Forum, Aug 2021, Virtual event, United States. pp.AIAA 2021-2297, ⟨10.2514/6.2021-2297⟩
International audience; Noise pollution is a major concern for aircraft manufacturer during design and certification. Very high sound levels are recorded in take-off phases upstream of the engine fan, where multitonal noise components can appear (so-
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b4a746a88300bd36d2abc4ea10de63d6
https://doi.org/10.2514/6.2021-2297
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7
Stability-Based Transition Model Using Transport Equations
Autor: Gregory Delattre, Hugues Deniau, Lucas Pascal, Julien Cliquet
Publikováno v: AIAA Journal
AIAA Journal, American Institute of Aeronautics and Astronautics, 2020, ⟨10.2514/1.J058906⟩
International audience; A laminar-turbulent transition model is presented. The model accounts for longitudinal transition mechanisms (i.e. Tollmien-Schlichting induced transition) and was calibrated using stability computations on similar boundary la
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9fa6579abe2f5f2c6e4dfa27404036d9
https://hal.archives-ouvertes.fr/hal-02883554/file/DMPE20070.1593412185_preprint.pdf
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8
Strong compact formalism for characteristic boundary conditions with discontinuous spectral methods
Autor: Romain Fiévet, Hugues Deniau, Estelle Piot
Publikováno v: Journal of Computational Physics
Journal of Computational Physics, Elsevier, 2020, 408 (109276), pp.1-26. ⟨10.1016/j.jcp.2020.109276⟩
Journal of Computational Physics, Elsevier, 2020, 408 (109276), pp.1-26
Characteristic boundary conditions for the Navier-Stokes equations (NSCBC) are implemented for the first time with discontinuous spectral methods, namely the spectral difference and flux reconstruction. The implementation makes use of the resolution
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::993a321e8a5b8a5b51b18001f65ab3ea
https://hal.archives-ouvertes.fr/hal-02488935/file/DMPE20011.1582276143_postprint.pdf
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10
Numerical Study of Hypersonic Boundary-Layer Transition Delay through Second-Mode Absorption
Autor: Hugues Deniau, Jean-Philippe Brazier, Estelle Piot, Romain Fiévet
Publikováno v: AIAA SCITECH 2020
AIAA SCITECH 2020, Jan 2020, ORLANDO, United States. ⟨10.2514/6.2020-2061⟩
International audience; Numerical time-domain impedance boundary conditions are developed within a high-order spectral difference flow solver. They are designed to accurately replicate the acoustic response of ultrasonically-absorbent coatings over a
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9425e9e54fbc0bf4d77cc2fa8a373013
https://hal.archives-ouvertes.fr/hal-02486673/file/DMPE20007.1581329319.pdf
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