The Experts below are selected from a list of 5028 Experts worldwide ranked by ideXlab platform

Isabelle Cantat - One of the best experts on this subject based on the ideXlab platform.

  • Dynamical Coupling between Connected Foam Films: Interface Transfer across the Menisci
    Physical Review Letters, 2020
    Co-Authors: Adrien Bussonnière, Evgenia Shabalina, Xavier Ah-thon, Mickaël Le Fur, Isabelle Cantat
    Abstract:

    The highly confined flow of the liquid phase, trapped between the gas bubbles, is at the origin of the large effective Viscosity of the liquid Foams. Despite the industrial relevance of this complex fluid, the Foam Viscosity remains difficult to predict because of the lack of flow characterization at the bubble scale. Using an original deformable frame, we provide the first experimental evidence of the interface transfer between a compressed film (or a stretched film) and its first neighbor, across their common meniscus. We measure this transfer velocity, which is a key boundary condition for local flows in Foams. We also show the dramatic film thickness variation induced by this interface transfer, which may play an important role in the film thickness distribution of a 3D Foam sample.

Adrien Bussonnière - One of the best experts on this subject based on the ideXlab platform.

  • Dynamical Coupling between Connected Foam Films: Interface Transfer across the Menisci
    Physical Review Letters, 2020
    Co-Authors: Adrien Bussonnière, Evgenia Shabalina, Xavier Ah-thon, Mickaël Le Fur, Isabelle Cantat
    Abstract:

    The highly confined flow of the liquid phase, trapped between the gas bubbles, is at the origin of the large effective Viscosity of the liquid Foams. Despite the industrial relevance of this complex fluid, the Foam Viscosity remains difficult to predict because of the lack of flow characterization at the bubble scale. Using an original deformable frame, we provide the first experimental evidence of the interface transfer between a compressed film (or a stretched film) and its first neighbor, across their common meniscus. We measure this transfer velocity, which is a key boundary condition for local flows in Foams. We also show the dramatic film thickness variation induced by this interface transfer, which may play an important role in the film thickness distribution of a 3D Foam sample.

Cantat Isabelle - One of the best experts on this subject based on the ideXlab platform.

  • Dynamical Coupling between Connected Foam Films: Interface Transfer across the Menisci
    'American Physical Society (APS)', 2020
    Co-Authors: Bussonnière Adrien, Shabalina Evgenia, Ah-thon Xavier, Le Fur Mickaël, Cantat Isabelle
    Abstract:

    International audienceThe highly confined flow of the liquid phase, trapped between the gas bubbles, is at the origin of the large effective Viscosity of the liquid Foams. Despite the industrial relevance of this complex fluid, the Foam Viscosity remains difficult to predict because of the lack of flow characterization at the bubble scale. Using an original deformable frame, we provide the first experimental evidence of the interface transfer between a compressed film (or a stretched film) and its first neighbor, across their common meniscus. We measure this transfer velocity, which is a key boundary condition for local flows in Foams. We also show the dramatic film thickness variation induced by this interface transfer, which may play an important role in the film thickness distribution of a 3D Foam sample

  • Local origin of the visco-elasticity of a millimetric elementary Foam
    2020
    Co-Authors: Bussonnière Adrien, Cantat Isabelle
    Abstract:

    Liquid Foam exhibits surprisingly high Viscosity, higher than each of its phases. This dissipation enhancement has been rationalized by invoking either a geometrical confinement of the shear in the liquid phase, or the influence of the interface Viscosity. However, a precise localization of the dissipation, and its mechanism, at the bubble scale is still lacking. To this aim, we simultaneously monitored the evolution of the local flow velocity, film thickness and surface tension of a five films assembly, induced by different controlled deformations. These measurements allow us to build local constitutive relations for this Foam elementary brick. We first show that, for our millimetric Foam films, the main part of the film has a purely elastic, reversible behavior, thus ruling out the interface Viscosity to explain the observed dissipation. We then highlight a generic frustration at the menisci, controlling the interface transfer between neighbor films and resulting in the localization of a bulk shear flow close to the menisci. A model accounting for surfactant transport in these small sheared regions is developed. It is in good agreement with the experiment, and demonstrate that most of the dissipation is localized in these domains. The length of these sheared regions, determined by the physico-chemical properties of the solution, sets a transition between a large bubble regime in which the films are mainly stretched and compressed, and a small bubble regime in which they are sheared. Finally, we discuss the parameter range where a model of Foam Viscosity could be built on the basis of these local results.Comment: 30 pages, 22 figure

  • Dynamical coupling between connected Foam films by interface transfer across the menisci
    'American Physical Society (APS)', 2019
    Co-Authors: Bussonnière Adrien, Shabalina Evgenia, Ah-thon Xavier, Mickaël Le Fur, Cantat Isabelle
    Abstract:

    The highly confined flow of the liquid phase, trapped between the gas bubbles, is at the origin of the large effective Viscosity of the liquid Foams. Despite the industrial relevance of this complex fluid, the Foam Viscosity remains difficult to predict, because of the lack of flow characterization at the bubble scale. Using an original deformable frame, we provide the first experimental evidence of the interface transfer between a compressed film (resp. a stretched film) and its first neighbour, across their common meniscus. We measure this transfer velocity, which is a key boundary condition for local flows in Foams. We also show the dramatic film thickness variation induced by this interface transfer, which may play an important role in the film thickness distribution of a 3D Foam sample.Comment: 5 pages, 4 figure

Mickaël Le Fur - One of the best experts on this subject based on the ideXlab platform.

  • Dynamical Coupling between Connected Foam Films: Interface Transfer across the Menisci
    Physical Review Letters, 2020
    Co-Authors: Adrien Bussonnière, Evgenia Shabalina, Xavier Ah-thon, Mickaël Le Fur, Isabelle Cantat
    Abstract:

    The highly confined flow of the liquid phase, trapped between the gas bubbles, is at the origin of the large effective Viscosity of the liquid Foams. Despite the industrial relevance of this complex fluid, the Foam Viscosity remains difficult to predict because of the lack of flow characterization at the bubble scale. Using an original deformable frame, we provide the first experimental evidence of the interface transfer between a compressed film (or a stretched film) and its first neighbor, across their common meniscus. We measure this transfer velocity, which is a key boundary condition for local flows in Foams. We also show the dramatic film thickness variation induced by this interface transfer, which may play an important role in the film thickness distribution of a 3D Foam sample.

  • Dynamical coupling between connected Foam films by interface transfer across the menisci
    'American Physical Society (APS)', 2019
    Co-Authors: Bussonnière Adrien, Shabalina Evgenia, Ah-thon Xavier, Mickaël Le Fur, Cantat Isabelle
    Abstract:

    The highly confined flow of the liquid phase, trapped between the gas bubbles, is at the origin of the large effective Viscosity of the liquid Foams. Despite the industrial relevance of this complex fluid, the Foam Viscosity remains difficult to predict, because of the lack of flow characterization at the bubble scale. Using an original deformable frame, we provide the first experimental evidence of the interface transfer between a compressed film (resp. a stretched film) and its first neighbour, across their common meniscus. We measure this transfer velocity, which is a key boundary condition for local flows in Foams. We also show the dramatic film thickness variation induced by this interface transfer, which may play an important role in the film thickness distribution of a 3D Foam sample.Comment: 5 pages, 4 figure

Waleed Al Ameri - One of the best experts on this subject based on the ideXlab platform.

  • tuning Foam parameters for mobility control using co2 Foam field application to maximize oil recovery from a high temperature high salinity layered carbonate reservoir
    Energy & Fuels, 2017
    Co-Authors: Ali Al Sumaiti, Abdul Ravoof Shaik, Eric Sonny Mathew, Waleed Al Ameri
    Abstract:

    This paper investigates the reduction in gas mobility during the EOR (enhanced oil recovery) process of gas injection due to the presence of Foam, thereby increasing sweep efficiency. The presented work is focused on developing a systematic approach to tune the CO2 Foam parameters based on two separate core flooding experiments, the former conducted at variable Foam qualities while the latter at a fixed Foam quality. The paper discusses the experimental data required for the modeling of mobility control using CO2-Foam for a high temperature, high salinity layered carbonate reservoir. An empirical Foam model is used for parametric matching of laboratory data, and Foam parameters are calculated and tuned. The key objective of the model is not only to match the measured apparent Foam Viscosity for varying Foam qualities but also be able to capture the pressure drop measured for various experimental runs. The tuned Foam model can be applied to field scale and design the injection strategy to maximize the oil ...