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Charles Rosenblatt - One of the best experts on this subject based on the ideXlab platform.

  • 2D Rayleigh-Taylor instability: Interfacial Arc-Length vs. deformation amplitude
    2014
    Co-Authors: Marie-charlotte Renoult, Pierre Carles, Sameh Ferjani, Charles Rosenblatt
    Abstract:

    Fluid interface instabilities are usually studied through the time evolution of the amplitude of deformation of the interface. While this approach is convenient, it often fails to fully describe the evolution of a deforming interface, especially when the interface cannot be represented as a single-valued function of a space coordinate. Here, we present experimental data on the Rayleigh-Taylor 2D instability for immiscible fluids having a single-mode sinusoidal initial perturbation, which is obtained through the use of magnetic levitation. We observe that new information can be retrieved by using an alternate metric to the amplitude, viz., the total Arc-Length of the interface (in 2D), or equivalently its total surface area (in 3D). In particular, we identify a master curve for the evolution of the Arc-Length over time, following three different regimes and on which all our data points fall. We conjecture that the exploration of such alternate metrics will yield interesting results on a broad range of interface instabilities.

  • 2D Rayleigh-Taylor instability: Interfacial Arc-Length vs. deformation amplitude
    EPL - Europhysics Letters, 2013
    Co-Authors: Marie-charlotte Renoult, Pierre Carles, Sameh Ferjani, Charles Rosenblatt
    Abstract:

    Fluid interface instabilities are usually studied through the time evolution of the amplitude of deformation of the interface. While this approach is convenient, it often fails to fully describe the evolution of a deforming interface, especially when the interface cannot be represented as a single-valued function of a space coordinate. Here, we present new experimental data on Rayleigh-Taylor 2D instability for immiscible fluids, obtained through the use of magnetic levitation. We observe that new information can be retrieved by using an alternate metric to the amplitude, viz., the total Arc-Length of the interface (in 2D), or equivalently its total surface area (in 3D). In particular, we identify a master curve for the evolution of the Arc-Length over time, following three different regimes and on which all our data points fall. We conjecture that the exploration of such alternate metrics will yield equally promising results on a broad range of interface instabilities.

Marie-charlotte Renoult - One of the best experts on this subject based on the ideXlab platform.

  • 2D Rayleigh-Taylor instability: Interfacial Arc-Length vs. deformation amplitude
    2014
    Co-Authors: Marie-charlotte Renoult, Pierre Carles, Sameh Ferjani, Charles Rosenblatt
    Abstract:

    Fluid interface instabilities are usually studied through the time evolution of the amplitude of deformation of the interface. While this approach is convenient, it often fails to fully describe the evolution of a deforming interface, especially when the interface cannot be represented as a single-valued function of a space coordinate. Here, we present experimental data on the Rayleigh-Taylor 2D instability for immiscible fluids having a single-mode sinusoidal initial perturbation, which is obtained through the use of magnetic levitation. We observe that new information can be retrieved by using an alternate metric to the amplitude, viz., the total Arc-Length of the interface (in 2D), or equivalently its total surface area (in 3D). In particular, we identify a master curve for the evolution of the Arc-Length over time, following three different regimes and on which all our data points fall. We conjecture that the exploration of such alternate metrics will yield interesting results on a broad range of interface instabilities.

  • 2D Rayleigh-Taylor instability: Interfacial Arc-Length vs. deformation amplitude
    EPL - Europhysics Letters, 2013
    Co-Authors: Marie-charlotte Renoult, Pierre Carles, Sameh Ferjani, Charles Rosenblatt
    Abstract:

    Fluid interface instabilities are usually studied through the time evolution of the amplitude of deformation of the interface. While this approach is convenient, it often fails to fully describe the evolution of a deforming interface, especially when the interface cannot be represented as a single-valued function of a space coordinate. Here, we present new experimental data on Rayleigh-Taylor 2D instability for immiscible fluids, obtained through the use of magnetic levitation. We observe that new information can be retrieved by using an alternate metric to the amplitude, viz., the total Arc-Length of the interface (in 2D), or equivalently its total surface area (in 3D). In particular, we identify a master curve for the evolution of the Arc-Length over time, following three different regimes and on which all our data points fall. We conjecture that the exploration of such alternate metrics will yield equally promising results on a broad range of interface instabilities.

Sameh Ferjani - One of the best experts on this subject based on the ideXlab platform.

  • 2D Rayleigh-Taylor instability: Interfacial Arc-Length vs. deformation amplitude
    2014
    Co-Authors: Marie-charlotte Renoult, Pierre Carles, Sameh Ferjani, Charles Rosenblatt
    Abstract:

    Fluid interface instabilities are usually studied through the time evolution of the amplitude of deformation of the interface. While this approach is convenient, it often fails to fully describe the evolution of a deforming interface, especially when the interface cannot be represented as a single-valued function of a space coordinate. Here, we present experimental data on the Rayleigh-Taylor 2D instability for immiscible fluids having a single-mode sinusoidal initial perturbation, which is obtained through the use of magnetic levitation. We observe that new information can be retrieved by using an alternate metric to the amplitude, viz., the total Arc-Length of the interface (in 2D), or equivalently its total surface area (in 3D). In particular, we identify a master curve for the evolution of the Arc-Length over time, following three different regimes and on which all our data points fall. We conjecture that the exploration of such alternate metrics will yield interesting results on a broad range of interface instabilities.

  • 2D Rayleigh-Taylor instability: Interfacial Arc-Length vs. deformation amplitude
    EPL - Europhysics Letters, 2013
    Co-Authors: Marie-charlotte Renoult, Pierre Carles, Sameh Ferjani, Charles Rosenblatt
    Abstract:

    Fluid interface instabilities are usually studied through the time evolution of the amplitude of deformation of the interface. While this approach is convenient, it often fails to fully describe the evolution of a deforming interface, especially when the interface cannot be represented as a single-valued function of a space coordinate. Here, we present new experimental data on Rayleigh-Taylor 2D instability for immiscible fluids, obtained through the use of magnetic levitation. We observe that new information can be retrieved by using an alternate metric to the amplitude, viz., the total Arc-Length of the interface (in 2D), or equivalently its total surface area (in 3D). In particular, we identify a master curve for the evolution of the Arc-Length over time, following three different regimes and on which all our data points fall. We conjecture that the exploration of such alternate metrics will yield equally promising results on a broad range of interface instabilities.

Pierre Carles - One of the best experts on this subject based on the ideXlab platform.

  • 2D Rayleigh-Taylor instability: Interfacial Arc-Length vs. deformation amplitude
    2014
    Co-Authors: Marie-charlotte Renoult, Pierre Carles, Sameh Ferjani, Charles Rosenblatt
    Abstract:

    Fluid interface instabilities are usually studied through the time evolution of the amplitude of deformation of the interface. While this approach is convenient, it often fails to fully describe the evolution of a deforming interface, especially when the interface cannot be represented as a single-valued function of a space coordinate. Here, we present experimental data on the Rayleigh-Taylor 2D instability for immiscible fluids having a single-mode sinusoidal initial perturbation, which is obtained through the use of magnetic levitation. We observe that new information can be retrieved by using an alternate metric to the amplitude, viz., the total Arc-Length of the interface (in 2D), or equivalently its total surface area (in 3D). In particular, we identify a master curve for the evolution of the Arc-Length over time, following three different regimes and on which all our data points fall. We conjecture that the exploration of such alternate metrics will yield interesting results on a broad range of interface instabilities.

  • 2D Rayleigh-Taylor instability: Interfacial Arc-Length vs. deformation amplitude
    EPL - Europhysics Letters, 2013
    Co-Authors: Marie-charlotte Renoult, Pierre Carles, Sameh Ferjani, Charles Rosenblatt
    Abstract:

    Fluid interface instabilities are usually studied through the time evolution of the amplitude of deformation of the interface. While this approach is convenient, it often fails to fully describe the evolution of a deforming interface, especially when the interface cannot be represented as a single-valued function of a space coordinate. Here, we present new experimental data on Rayleigh-Taylor 2D instability for immiscible fluids, obtained through the use of magnetic levitation. We observe that new information can be retrieved by using an alternate metric to the amplitude, viz., the total Arc-Length of the interface (in 2D), or equivalently its total surface area (in 3D). In particular, we identify a master curve for the evolution of the Arc-Length over time, following three different regimes and on which all our data points fall. We conjecture that the exploration of such alternate metrics will yield equally promising results on a broad range of interface instabilities.

Y. Duan - One of the best experts on this subject based on the ideXlab platform.

  • A LOCAL Arc-Length PROCEDURE FOR STRAIN SOFTENING
    Computers & Structures, 1997
    Co-Authors: I.m. May, Y. Duan
    Abstract:

    Abstract This paper describes a new solution procedure, the local Arc-Length method, for structures with strain-softening materials, which is a development of the Arc-Length method. The new procedure is based on the use of a constraint equation which uses displacement parameters associated with the localized failure zone in such structures. Numerical examples show that this new procedure is more reliable than current versions of the Arc-Length method.