Výsledky vyhledávání - "Delphine Doppler"

Bubble behaviour in a horizontal high-speed solid-body rotating flow

Autor: Jean-Louis Marié, Jean-Philippe Matas, Hélène Scolan, Majid Rodgar, Delphine Doppler

Publikováno v: Journal of Fluid Mechanics
Journal of Fluid Mechanics, Cambridge University Press (CUP), 2021, 925, ⟨10.1017/jfm.2021.683⟩

We study experimentally the behaviour of a bubble injected into a horizontal liquid solid-body rotating flow, in a range of rotational velocities where the bubble is close to the axis of rotation. We first study the stretching of the bubble as a func

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8892ca4675c603c792bb8198cc4af321
https://doi.org/10.1017/jfm.2021.683

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Velocity field in a single row canopy made of flexible blades for a static reconfiguration case and a monami case

Autor: Sylvie Barsu, B. Löhrer, J. John Soundar Jerome, Jochen Fröhlich, Nicolas Riviere, Delphine Doppler

Publikováno v: River Flow 2020 ISBN: 9781003110958
River Flow 2020

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1185f9ff36c81d5ed49d3803d06094b3
https://doi.org/10.1201/b22619-24

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Direct numerical simulation of particle transport by hairpin vortices in a laminar boundary layer

Autor: Marc Buffat, Ivana Vinkovic, Mathieu Prevel, Christophe Pera, Delphine Doppler

Publikováno v: International Journal of Heat and Fluid Flow
International Journal of Heat and Fluid Flow, Elsevier, 2013, 43, pp.1-14. ⟨10.1016/j.ijheatfluidflow.2013.03.015⟩

The transport of solid particles by coherent wall structures is studied here. This phenomenon is present in numerous environmental and engineering flows. The flow above a wall-mounted hemisphere is used for generating hairpin vortices in a laminar bo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::65717d6904d7e1aa87004df599ac8dcf
https://doi.org/10.1016/j.ijheatfluidflow.2013.03.015

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Drag measurements in laterally confined 2D canopies: reconfiguration and sheltering effect

Autor: Delphine Doppler, Nicolas Riviere, Sylvie Barsu, J. John Soundar Jerome, Michel Lance

Publikováno v: Physics of Fluids
Physics of Fluids, American Institute of Physics, 2016, 28 (10), pp.107101. ⟨10.1063/1.4962309⟩

International audience; Plants in aquatic canopies deform when subjected to a water flow and so, unlike a rigid bluff body, the resulting drag force F D grows sub-quadratically with the flow velocity ¯ U. In this article, the effect of density on th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2538c647c32a7d9232ff2ed697b82b8c
https://hal.archives-ouvertes.fr/hal-01743945

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Direct numerical simulation of particle interaction with ejections in turbulent channel flows

Autor: Ivana Vinkovic, J. Lelouvetel, Delphine Doppler, Marc Buffat

Publikováno v: International Journal of Multiphase Flow
International Journal of Multiphase Flow, Elsevier, 2011, 37, pp.187-197. ⟨10.1016/j.ijmultiphaseflow.2010.09.008⟩

Direct numerical simulations (DNS) of incompressible turbulent channel flows coupled with Lagrangian particle tracking are performed to study the characteristics of ejections that surround solid particles. The behavior of particles in dilute turbulen

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2fc4d52085c815fc40b8bab5aab108b1
https://doi.org/10.1016/j.ijmultiphaseflow.2010.09.008

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Mixing layer in open-channel junction flows

Autor: Nicolas Riviere, Ivana Vinkovic, Delphine Doppler, Emmanuel Mignot

Publikováno v: Environmental Fluid Mechanics
Environmental Fluid Mechanics, Springer Verlag, 2014, 14, pp.1027-1041. ⟨10.1007/s10652-013-9310-7⟩

When two open-channel flows merge in a three-branch subcritical junction, a mixing layer appears at the interface between the two inflows. If the width of the downstream channel is equal to the width of each inlet channel, this mixing layer is accele

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4b7ed1a657d3bc9893c81c4dc5df8092
https://hal.archives-ouvertes.fr/hal-01296871/document

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Direct numerical simulation of particle transport by hairpin vortices in a laminar boundary layer

Autor: Mathieu Prevel, Ivana Vinkovic, Delphine Doppler, Marc Buffat

Publikováno v: Proceeding of THMT-12. Proceedings of the Seventh International Symposium On Turbulence, Heat and Mass Transfer Palermo, Italy, 24-27 September, 2012.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::11f86fdeb104697185d4536e5466d1bd
https://doi.org/10.1615/ichmt.2012.procsevintsympturbheattransfpal.680

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Experimental investigation of ejections and sweeps involved in particle suspension

Autor: Ivana Vinkovic, J. Lelouvetel, F. Bigillon, Jean-Yves Champagne, Delphine Doppler

Publikováno v: Water Resources Research. 45

[1] Experiments involving particle-laden flows were conducted to study interactions between ejections and suspended particles. Three types of beads and four hydraulic conditions are tested (10,000 < Re < 30,000). A two-dimensional Particle Image Velo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3d5edbe2d018c1b85889f516b616fcc7
https://doi.org/10.1029/2007wr006520

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