Search Results - "Delannay, R"

Towards a theoretical picture of dense granular flows down inclines by Valance, A, Delannay, R, Taberlet, N, Louge, M, Richard, P

“…Unlike most fluids, granular materials include coexisting solid, liquid or gaseous regions, which produce a rich variety of complex flows. Dense flows down…”
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Rheology of confined granular flows: scale invariance, glass transition, and friction weakening by Richard, P, Valance, A, Métayer, J-F, Sanchez, P, Crassous, J, Louge, M, Delannay, R

“…We study fully developed, steady granular flows confined between parallel flat frictional sidewalls using numerical simulations and experiments. Above a…”
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Dissipation in foam flowing through narrow channels by Cantat, I, Kern, N, Delannay, R

“…We present measurements on simple foam structures flowing through a narrow channel. Driving pressure and bubble velocity are found to be related by a power law…”
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On the existence of stationary states during granular compaction by RIBIERE, Ph, RICHARD, P, PHILIPPE, P, BIDEAU, D, DELANNAY, R

“…When submitted to gentle mechanical taps a granular packing slowly compacts until it reaches a stationary state that depends on the tap characteristics. The…”
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Pre-avalanche structural rearrangements in the bulk of granular medium: Experimental evidence by Zaitsev, V. Yu, Richard, P, Delannay, R, Tournat, V, Gusev, V. E

“…Granular avalanches are typical threshold-type phenomena implying the loss of stability of granular packings when their slope exceeds a critical angle…”
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Coupling heat conduction and water-steam flow in a saturated porous medium by Muhieddine, M., Canot, É., March, R., Delannay, R.

“…This paper is devoted to the simulation of water forced evaporation in a porous saturated medium in a 3D‐axisymmetric domain by resolution of partial…”
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Dissipative flows of 2D foams by CANTAT, I, DELANNAY, R

“…We analyze the flow of a liquid foam between two plates separated by a gap of the order of the bubble size (2D foam). We concentrate on the salient features of…”
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The growth of a Super Stable Heap: An experimental and numerical study by Taberlet, N, Richard, P, Henry, E, Delannay, R

“…We report experimental and numerical results on the growth of a Super Stable Heap (SSH). Such a regime appears for flows in a thin channel and for high flow…”
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Density inversion in rapid granular flows : the supported regime by TABERLET, N, RICHARD, P, JENKINS, J. T, DELANNAY, R

“…This paper presents numerical findings on rapid 2D and 3D granular flows on a bumpy base. In the supported regime studied here, a strongly sheared, dilute and…”
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Experimental compaction of anisotropic granular media by RIBIERE, P, RICHARD, P, BIDEAU, D, DELANNAY, R

“…We report on experiments to measure the temporal and spatial evolution of packing arrangements of anisotropic and weakly confined granular material, using…”
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Swelling of a single foam film under slipping by Emile, J., Hardy, E., Saint-Jalmes, A., Terriac, E., Delannay, R.

“…Aqueous foams are often used under flow, and one of the biggest challenges is to create predictive models of their rheology. Our investigations deal with the…”
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Heterogeneous dynamics of a granular pack under vertical tapping by Kiesgen de Richter, S, Le Caër, G, Delannay, R

“…The dynamics of a tri-dimensional dense granular packing under gravity and vertical tapping is numerically investigated in a stationary state. A slowing-down…”
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Distribution of the determinant of a random real-symmetric matrix from the gaussian orthogonal ensemble by Delannay, R, Le Caer G

“…The Mellin transform of the probability density of the determinant of NxN random real-symmetric matrices from the Gaussian orthogonal ensemble is calculated…”
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Compressibility regularizes the μ(I)-rheology for dense granular flows by Heyman, Joris, Valance, Alexandre, Delannay, Renaud, Tabuteau, Herve

“…The μ(I)-rheology was recently proposed as a potential candidate to model the incompressible flow of frictional grains in the dense inertial regime. However,…”
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Some consequences of exchangeability in random-matrix theory by Le Caër, G, Delannay, R

“…Properties of infinite sequences of exchangeable random variables result directly in explicit expressions for calculating asymptotic densities of eigenvalues…”
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Slow relaxation and compaction of granular systems by Richard, Patrick, Nicodemi, Mario, Delannay, Renaud, Ribière, Philippe, Bideau, Daniel

“…Granular materials are of substantial importance in many industrial and natural processes, yet their complex behaviours, ranging from mechanical properties of…”
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Friction and rotation modes in a packing of cylinders under shear stress by KHIDAS, Y, AMMI, M, DELANNAY, R, OGER, L

“…We study the influence of collective processes such as rotations on the effective friction of sheared granular media made of two-dimensional array of…”
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Dynamical transition induced by large bubbles in two-dimensional foam flows by Cantat, I, Delannay, R

“…We study the dynamical behavior of a large bubble embedded in the plug flow of an ordered two-dimensional foam. At a critical velocity, the foam structure…”
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Experimental evidence of flow destabilization in a two-dimensional bidisperse foam by Cantat, I, Poloni, C, Delannay, R

“…Liquid foam flows in a Hele-Shaw cell were investigated. The plug flow obtained for a monodisperse foam is strongly perturbed in the presence of bubbles whose…”
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Superstable granular heap in a thin channel by Taberlet, Nicolas, Richard, Patrick, Valance, Alexandre, Losert, Wolfgang, Pasini, José Miguel, Jenkins, James T, Delannay, Renaud

“…We observed experimentally a new regime for granular flows in an inclined channel with a flow-rate-controlled system. For high flow rates, the flow occurs atop…”
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