Výsledky vyhledávání - "J. Vatteville"

PTV measurements of oscillating grid turbulence in water and polymer solutions

Autor: Tom Lacassagne, J. Vatteville, Serge Simoëns, Cédric Degouet, Mahmoud El Hajem

Publikováno v: Experiments in Fluids
Experiments in Fluids, Springer Verlag (Germany), 2020, 61 (7), ⟨10.1007/s00348-020-03000-x⟩

Abstract Particle Tracking Velocimetry (PTV) is applied to measure the flow in an oscillating grid stirred tank filled with either water or shear thinning dilute polymer solutions (DPS) of Xanthan Gum (XG). There are many interests of studying turbul

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e2161cbdc4ab2f203cba7bd93431782c
https://doi.org/10.1007/s00348-020-03000-x

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Dynamics of a laminar plume in a cavity: The influence of boundaries on the steady state stem structure

Autor: P. E. van Keken, J. Vatteville, Anne Davaille

Publikováno v: Geochemistry, Geophysics, Geosystems. 14:158-178

[1] The steady state structure of thermal plumes rising from a small heater is studied in high Prandtl number fluids. We show good agreement between laboratory experiments and numerical simulations. We study the effect of the boundaries on the plume

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a03949ca29c00f0a3678d21e19f317d7
https://doi.org/10.1029/2012gc004383

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Building of the Amsterdam-Saint Paul plateau: A 10 Myr history of a ridge-hot spot interaction and variations in the strength of the hot spot source

Autor: Kevin T. M. Johnson, Marcia Maia, Christophe Hémond, J. Vatteville, Ivo Pessanha, Esther Courrèges, Pascal Gente, Myriam Janin, Martin Patriat, Walter R. Roest, Jean-Yves Royer

Publikováno v: Journal of Geophysical Research
Journal of Geophysical Research, American Geophysical Union, 2011, 116, pp.B09104. ⟨10.1029/2010JB007768⟩
Journal Of Geophysical Research-solid Earth (0148-0227) (Amer Geophysical Union), 2011-09, Vol. 116, N. B09104, P. 19 p.
Journal of Geophysical Research, 2011, 116, pp.B09104. ⟨10.1029/2010JB007768⟩

The Amsterdam-Saint Paul plateau results from a 10 Myr interaction between the South East Indian Ridge and the Amsterdam-Saint Paul hot spot. During this period of time, the structure of the plateau changed as a consequence of changes in both the rid

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9b45547c2fb7b5bece0e65365fa7aaad
https://hal-insu.archives-ouvertes.fr/insu-00627834

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Anatomy of a laminar starting thermal plume at high Prandtl number

Autor: J. Vatteville, Anne Davaille, Floriane Touitou, Angela Limare, Ichiro Kumagai

Publikováno v: Experiments in Fluids
Experiments in Fluids, Springer Verlag (Germany), 2011, 50 (2), pp.285-300. ⟨10.1007/s00348-010-0924-y⟩
Experiments in Fluids, 2011, 50 (2), pp.285-300. ⟨10.1007/s00348-010-0924-y⟩

International audience; We present an experimental study of the dynamics of a plume generated from a small heat source in a high Prandtl number fluid with a strongly temperature-dependent viscosity. The velocity field was determined with particle ima

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::79c93480e5a2a807323fdbca96a00bf8
https://hal-insu.archives-ouvertes.fr/insu-02932057

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Measurements of liquid film flow as a function of fluid properties and channel width: evidence for surface-tension-induced long-range transverse coherence

Autor: M. Vlachogiannis, J. Vatteville, A Georgantaki, Vasilis Bontozoglou

Publikováno v: Physical review. E, Statistical, nonlinear, and soft matter physics. 84(2 Pt 2)

We study experimentally the influence of the transverse dimension on film flow in relatively wide channels with sidewalls. Large deviations from two-dimensional predictions are observed in the primary instability and in the post-threshold traveling w

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e47af76e2fc8aece09fe010b99434b03
https://pubmed.ncbi.nlm.nih.gov/21929108

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Shape determination of unidimensional objects: the virtual image correlation method

Autor: Benoit Semin, Harold Auradou, Marc François, J. Vatteville

Publikováno v: EPJ Web of Conferences, Vol 6, p 10004 (2010)
EPJ Web of Conferences
EPJ Web of Conferences, EDP Sciences, 2010, 6, pp.10004. ⟨10.1051/epjconf/20100610004⟩

The proposed method, named Virtual Image Correlation, allows one to identify an analytical expression of the shape of a curvilinear object from its image. It uses a virtual beam, whose curvature ﬁeld is expressed as a truncated mathematical series.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ad4778952cc0abc87f2f84aaa3b1a536
https://doaj.org/article/c3a66409043146c6b314695b136173d5

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Starting laminar plumes: Comparison of laboratory and numerical modeling

Autor: J. Vatteville, Angela Limare, Peter E. van Keken, Anne Davaille

Publikováno v: Geochemistry, Geophysics, Geosystems. 10

A detailed comparison of starting laminar plumes in viscous fluids is provided using the complementary approaches of laboratory modeling and numerical simulation. In the laboratory experiments the plumes are started in a nearly isoviscous silicone oi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5bdc858de72a4b4962ff15246a099355
https://doi.org/10.1029/2009gc002739

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New constrains on ridge-hotspot interactions from the PLURIEL Cruise, Saint Paul-Amsterdam Plateau, Indian Ocean

Publikováno v: 10th International Congress of the Brazilian Geophysical Society & EXPOGEF 2007, Rio de Janeiro, Brazil, 19-23 November 2007.

The PLURIEL cruise (Marion Dufresne II, 19 September 31 October 2006) had as main objective the study of the temporal evolution of the interaction between the St Paul-Amsterdam hotspot (SPA) and the Southeast Indian Ridge (SEIR) over the last 15 m.y.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f46f51c8d3ea0b11ba928f25e36ff8ef
https://doi.org/10.1190/sbgf2007-208

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On the transient nature of mantle plumes

Autor: Anne Davaille, J. Vatteville

Publikováno v: Geophysical Research Letters. 32

[1] We present new experiments focussing on the transient behaviour of thermal plumes. In a fluid heated from below, plumes develop once the hot thermal boundary layer (TBL) reaches a critical thickness (Howard, 1964). They rise through the fluid owi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3dc0b6b46e43d437492bd8a90e268b04
https://doi.org/10.1029/2005gl023029

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Dynamics and thermodynamics of a simple model similar to self-gravitating systems: the HMF model

Autor: Pierre-Henri Chavanis, J. Vatteville, Freddy Bouchet

Publikováno v: The European Physical Journal B: Condensed Matter and Complex Systems
The European Physical Journal B: Condensed Matter and Complex Systems, 2005, 46 (1), pp.61. ⟨10.1140/epjb/e2005-00234-0⟩
The European Physical Journal B: Condensed Matter and Complex Systems, Springer-Verlag, 2005, 46 (1), pp.61. ⟨10.1140/epjb/e2005-00234-0⟩

We discuss the dynamics and thermodynamics of the Hamiltonian Mean Field model (HMF) which is a prototypical system with long-range interactions. The HMF model can be seen as the one Fourier component of a one-dimensional self-gravitating system. Int

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cc538bba4b3ef9d64d16cb6a6bacda54
https://hal.science/hal-00139148

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