Theory and Modelling of Isotropic Turbulence: From Incompressible through Increasingly Compressible Flows

Autor: Claude Cambon

Publikováno v: Atmosphere, Vol 15, Iss 8, p 1000 (2024)

Homogeneous isotropic turbulence (HIT) has been a useful theoretical concept for more than fifty years of theory, modelling, and calculations. Some exact results are revisited in incompressible HIT, with special emphasis on the 4/5 Kolmogorov law. Th

Externí odkaz: https://doaj.org/article/60a52580db224c859e10c55acf981517

Nonlinear Effects on the Precessional Instability in Magnetized Turbulence

Autor: Abdelaziz Salhi, Amor Khlifi, Claude Cambon

Publikováno v: Atmosphere, Vol 11, Iss 1, p 14 (2019)

By means of direct numerical simulations (DNS), we study the impact of an imposed uniform magnetic field on precessing magnetohydrodynamic homogeneous turbulence with a unit magnetic Prandtl number. The base flow which can trigger the precessional in

Externí odkaz: https://doaj.org/article/76116c5c3e6b40a696fe6d7fb061eec1

Magneto-gravity-elliptic instability

Autor: Abdelaziz Salhi, Claude Cambon

Publikováno v: Journal of Fluid Mechanics. 963

Magneto-gravity-elliptic instability is addressed here considering an unbounded strained vortex (with constant vorticity $2\varOmega$ and with ellipticity parameter $\varepsilon$ ) of a perfectly conducting fluid subjected to a uniform axial magnetic

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::83c985c31981dd47598199841a8dcbe0
https://doi.org/10.1017/jfm.2023.300

Advanced spectral anisotropic modelling for shear flows

Autor: Antoine Briard, Thomas Gomez, Benoît-Joseph Gréa, Pierre Sagaut, Vincent Mons, Claude Cambon

Publikováno v: Journal of Turbulence
Journal of Turbulence, 2018, 19 (7), pp.570-599. ⟨10.1080/14685248.2018.1478092⟩
Journal of Turbulence, Taylor & Francis, 2018, 19 (7), pp.570-599. ⟨10.1080/14685248.2018.1478092⟩

International audience; In this work, the spectral modelling developed in MCS [Mons, Cambon, Sagaut. A spectral model for homogeneous shear-driven anisotropic turbulence in terms of spherically-averaged descriptors. J Fluid Mech. 2016;788:147-182] fo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4fd6fee22c7fa66082f28a64d856b36d
https://doi.org/10.1080/14685248.2018.1478092

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