Výsledky vyhledávání - "Fabien S Godeferd"

Akademický článek

Partitioning Waves and Eddies in Stably Stratified Turbulence

Autor: Henri Lam, Alexandre Delache, Fabien S Godeferd

Publikováno v: Atmosphere, Vol 11, Iss 4, p 420 (2020)

We consider the separation of motion related to internal gravity waves and eddy dynamics in stably stratified flows obtained by direct numerical simulations. The waves’ dispersion relation links their angle of propagation to the vertical θ , to th

Externí odkaz: https://doaj.org/article/97de3f8503194930a36fcae85c8b8b3d

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Akademický článek

Statistics of the perceived velocity gradient tensor in a rotating turbulent flow

Autor: Aurore Naso, Fabien S Godeferd

Publikováno v: New Journal of Physics, Vol 14, Iss 12, p 125002 (2012)

The dynamics and structure of rotating homogeneous turbulence is investigated through the statistical properties of the ‘perceived’ velocity gradient tensor, defined by interpolation from the locations and velocities of a set of four particles. T

Externí odkaz: https://doaj.org/article/fd78a0e9e083410fa666498d30708b97

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A phenomenological and multiscale modeling of arterial growth and remodeling under endofibrosis

Autor: J. Jansen, Fabien S. Godeferd, X. Escriva, P. Feugier

Publikováno v: Computer Methods in Biomechanics and Biomedical Engineering
Computer Methods in Biomechanics and Biomedical Engineering, Taylor & Francis, 2020, 23, pp.S145-S147. ⟨10.1080/10255842.2020.1812852⟩

High level endurance sports, like biking, may lead to a vascular pathology called endofibrosis. Its symptoms are an arterial wall thickening and a reduction of the artery lumen calibre. Cyclists ar...

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d9f1020b5f5fa33b1d7c5aeadd1804ec
https://hal.archives-ouvertes.fr/hal-03035846/document

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Signature and energetics of internal gravity waves in stratified turbulence

Autor: Fabien S. Godeferd, Alexandre Delache, Andrea Maffioli

Publikováno v: Physical Review Fluids
Physical Review Fluids, American Physical Society, 2020, 5 (11), pp.114802. ⟨10.1103/PhysRevFluids.5.114802⟩

International audience; Internal gravity waves propagating within homogeneous stratified turbulence are the subject of the present study. A spatiotemporal analysis is carried out on the results of direct numerical simulations including a forcing term

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::62a5a92af99c31a639f6fafbede78bc0
https://hal.archives-ouvertes.fr/hal-03047112

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Anisotropic Turbulent Cascades in Rotating Homogeneous Turbulence

Autor: A. Naso, Fabien S. Godeferd, D. Vallefuoco, Alexandre Delache

Publikováno v: Turbulent Cascades II
Turbulent Cascades II, pp.133-141, 2019, ⟨10.1007/978-3-030-12547-9_15⟩
Turbulent Cascades II ISBN: 9783030125462

We consider homogeneous turbulence submitted to the effect of an external rotation of the system. The presence of the Coriolis force results in anisotropic dynamics and structure of the flow, due to the presence of propagating inertial waves, and of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ffeaada0269fad9098c8baf0f4a3da2c
https://hal.archives-ouvertes.fr/hal-02377763

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Elektronická kniha

Turbulent Cascades II : Proceedings of the Euromech-ERCOFTAC Colloquium 589

Autor: Mikhael Gorokhovski, Fabien S. Godeferd

Gathering contributions by the most prominent researchers in a highly specialised field, this proceedings volume clarifies selected aspects of the physics of turbulent cascades and their statistical universalities under complex stationary and non-hom

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Kinetic-magnetic energy exchanges in rotating magnetohydrodynamic turbulence

Autor: Thierry Lehner, Claude Cambon, A. Khlifi, A. Salhi, F. S. Baklouti, Fabien S. Godeferd

Publikováno v: Journal of Turbulence
Journal of Turbulence, Taylor & Francis, 2019, 20 (4), pp.263-284. ⟨10.1080/14685248.2019.1623897⟩

International audience; We use direct numerical simulations to study the dynamics of incom-pressible homogeneous turbulence subjected to a uniform magnetic field B in a rotating frame with rotation vector. We consider two cases: B and ⊥ B. The init

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::22539a9f545e734de2f83f900b76798c
https://hal.archives-ouvertes.fr/hal-02906455/document

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Nonlinear spectral model for rotating sheared turbulence

Autor: Fabien S. Godeferd, Ying Zhu, A. Salhi, Claude Cambon

Publikováno v: Journal of Fluid Mechanics
Journal of Fluid Mechanics, Cambridge University Press (CUP), 2019, 866, pp.5-32. ⟨10.1017/jfm.2019.101⟩

We propose a statistical model for homogeneous turbulence undergoing distortions, which improves and extends the MCS model by Mons, Cambon & Sagaut (J. Fluid Mech., vol. 788, 2016, 147–182). The spectral tensor of two-point second-order velocity co

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e2413fdfb4490cf047bcf85ae96314cf
https://hal.archives-ouvertes.fr/hal-02906456

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Partitioning Waves and Eddies in Stably Stratified Turbulence

Autor: Alexandre Delache, Henri Lam, Fabien S. Godeferd

Publikováno v: Atmosphere
Volume 11
Issue 4
Atmosphere, MDPI 2020, 11 (4), pp.420. ⟨10.3390/atmos11040420⟩
Atmosphere, Vol 11, Iss 420, p 420 (2020)

We consider the separation of motion related to internal gravity waves and eddy dynamics in stably stratified flows obtained by direct numerical simulations. The waves&rsquo
dispersion relation links their angle of propagation to the vertical &t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::88770389b508fc6cdc176f7cf4de6e91
https://doi.org/10.3390/atmos11040420

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Spectral energy scaling in precessing turbulence

Autor: A. Salhi, A. Khlifi, Fabien S. Godeferd, Saber Nasraoui, Claude Cambon

Publikováno v: Physical Review E
Physical Review E, American Physical Society (APS), 2018, 98, pp.011102. ⟨10.1103/PhysRevE.98.011102⟩
Physical Review E, American Physical Society (APS), 2018, 98, ⟨10.1103/PhysRevE.98.011102⟩

We study precessing turbulence, which appears in several geophysical and astrophysical systems, by direct numerical simulations of homogeneous turbulence where precessional instability is triggered due to the imposed background flow. We show that the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::386c84e25ad93df0c24644044ed60121
https://hal.archives-ouvertes.fr/hal-02084827

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