Search Results - "Champagne, J Y"

Experimental investigation of ejections and sweeps involved in particle suspension by Lelouvetel, J, Bigillon, F, Doppler, D, Vinkovic, I, Champagne, J.Y

“…Experiments involving particle-laden flows were conducted to study interactions between ejections and suspended particles. Three types of beads and four…”
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Feedback between bed load transport and flow resistance in gravel and cobble bed rivers by Recking, A, Frey, P, Paquier, A, Belleudy, P, Champagne, J.Y

“…To calculate bed load, engineers often use flow resistance equations that provide estimates of bed shear stress. In these equations, on the basis of the…”
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Bed-Load Transport Flume Experiments on Steep Slopes by Recking, A, Frey, P, Paquier, A, Belleudy, P, Champagne, J. Y

“…Experiments were conducted over uniform gravel bed materials to obtain 143 friction factor values under bed-load equilibrium flow conditions in an attempt to…”
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Low Reynolds Number Turbulence Models to Simulate the Bubble Plume Behavior with the Euler-Euler Method by Besbes, S, M. El Hajem, H. Ben Aissia, Champagne, J Y

“…This paper presents a comparative assessment of low Reynolds number k- models against standard k- model in an Eulerian framework. Three different low-Re…”
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Shifts in drag and swimming potential during grayling ontogenesis: relations with habitat use by Sagnes, P., Champagne, J-Y., Morel, R.

“…The drag coefficient (Cd) of grayling Thymallus thymallus was dependent on body surface conditions and rigidity. At comparable flow conditions, Cd values of a…”
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Correction to “Feedback between bed load and flow resistance in gravel and cobble bed rivers” by Recking, A., Frey, P., Paquier, A., Belleudy, P., Champagne, J. Y.

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Numerical simulation of free ascension and coaxial coalescence of air bubbles using the volume of fluid method (VOF) by Abbassi, W., Besbes, S., Elhajem, M., Aissia, H. Ben, Champagne, J.Y.

“…•The dynamics of a single air bubble, the coaxial coalescence of two successive bubbles are investigated using the VOF method.•The wake structure and the…”
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Optical PIV and LDV Comparisons of Internal Flow Investigations in SHF Impeller by Wuibaut, G., Bois, G., El Hajem, M., Akhras, A., Champagne, J. Y.

“…The paper presents a comparison between two sets of experimental results in a centrifugal flow pump. The tested impeller is the so-called SHF impeller for…”
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Internal flow investigation of a centrifugal pump at the design point by Akhras, A. -R., El Hajem, M., Morel, R., Champagne, J. -Y.

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The Flow Rate Influence on the Interaction of a Radial Pump Impeller and the Diffuser by Akhras, A., El Hajem, M., Champagne, J.-Y., Morel, R.

“…This article presents the results of a detailed flow investigation within a centrifugal pump equipped with a vaned diffuser. The measurements were made with a…”
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Crayfish as Geomorphic Agents and Ecosystem Engineers: Biological Behavior Affects Sand and Gravel Erosion in Experimental Streams by Statzner, Bernhard, Fievet, Eric, Champagne, Jean-Yves, Morel, Robert, Herouin, Eric

“…Effects of animals on the transport of solids (e.g., sediments) can modify earth-surface processes and landforms (role as geomorphic agents) and resources for…”
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Contribution of benthic fish to the patch dynamics of gravel and sand transport in streams by Statzner, Bernhard, Sagnes, Pierre, Champagne, Jean-Yves, Viboud, Sylvie

“…Barbel and gudgeon differ in their biology and ecology so that their bioturbation of streambed sediments may have specific effects on the patch dynamics of the…”
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Silk-producing stream insects and gravel erosion: Significant biological effects on critical shear stress by Statzner, Bernhard, Arens, Marie‐Françoise, Champagne, Jean‐Yves, Morel, Robert, Herouin, Eric

“…There is growing evidence for impacts of small stream organisms on the transport of fine sediments. However, such impacts on the transport of coarser sediments…”
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PIV measurements and Eulerian–Lagrangian simulations of the unsteady gas–liquid flow in a needle sparger rectangular bubble column by Besbes, S., El Hajem, M., Ben Aissia, H., Champagne, J.Y., Jay, J.

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The Flow Rate Influence on the Interaction of a Radial Pump Impeller and the Diffuser by Akhras, A., Hajem, M., Champagne, J.-Y., Morel, R.

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Influence of operating conditions and liquid phase viscosity with volume of fluid method on bubble formation process by Abbassi, W., Besbes, S., El Hajem, M., Ben Aissia, H., Champagne, J.Y., Jay, J.

“…In this paper, a numerical study of air bubble formation and detachment in water (S-1) and in glycerin solutions (S-2 and S-3) was investigated using the…”
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CO sub(2) mass transfer and conversion to biomass in a horizontal gas-liquid photobioreactor by Valiorgue, P, Hadid, H Ben, El Hajem, M, Rimbaud, L, Muller-Feuga, A, Champagne, J Y

“…This study deals with CO sub(2) mass transfers and biomass conversion in an industrial horizontal tubular photobioreactor. An analytical approach is used to…”
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CO2 mass transfer and conversion to biomass in a horizontal gas–liquid photobioreactor by Valiorgue, P., Ben Hadid, H., El Hajem, M., Rimbaud, L., Muller-Feuga, A., Champagne, J.Y.

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Shifts in drag and swimming potential during grayling ontogenesis: relations with habitat use by Sagnes, P, Champagne, J, Morel, R

“…The drag coefficient (C sub(d)) of grayling Thymallus thymallus was dependent on body surface conditions and rigidity. At comparable flow conditions, C…”
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