The Experts below are selected from a list of 6 Experts worldwide ranked by ideXlab platform

Marc Fermigier - One of the best experts on this subject based on the ideXlab platform.

  • Rotational dynamics of a soft Filament: Wrapping transition and propulsive forces
    Physics of Fluids, 2008
    Co-Authors: Naïs Coq, Olivia Du Roure, Joel Marthelot, Denis Bartolo, Marc Fermigier
    Abstract:

    We experimentally analyze the shape of a long elastic Filament rotating in a viscous liquid. We identify a continuous but sharp transition from a straight to an helical shape, resulting from the competition between viscous stresses and elastic forces. This induced helicity generates a propulsive force along the axis of rotation. In addition, we show that the shape transition is associated with an unstable branch in the force-torque relation, confirming the numerical predictions of Manghi et al. [Phys. Rev. Lett. 96, 068101 (2006)]. A linearized model of the fluid-structure interaction is proposed to account for all the features of the nonlinear Filament dynamics.

  • Rotational dynamics of a soft Filament: Wrapping transition and propulsive forces
    2008
    Co-Authors: Naïs Coq, Olivia Du Roure, Joel Marthelot, Denis Bartolo, Marc Fermigier
    Abstract:

    We analyze experimentally the shape of a long elastic Filament rotating in a viscous liquid. We identify a continuous but sharp transition from a straight to an helical shape, resulting from the competition between viscous stresses and elastic forces. This induced helicity generates a propulsive force along the axis of rotation. In addition, we show that the shape transition is associated with an unstable branch in the force-torque relation. A linearized model of the fluid-structure interaction is proposed to account for all the features of the non-linear Filament dynamics.

Naïs Coq - One of the best experts on this subject based on the ideXlab platform.

  • Rotational dynamics of a soft Filament: Wrapping transition and propulsive forces
    Physics of Fluids, 2008
    Co-Authors: Naïs Coq, Olivia Du Roure, Joel Marthelot, Denis Bartolo, Marc Fermigier
    Abstract:

    We experimentally analyze the shape of a long elastic Filament rotating in a viscous liquid. We identify a continuous but sharp transition from a straight to an helical shape, resulting from the competition between viscous stresses and elastic forces. This induced helicity generates a propulsive force along the axis of rotation. In addition, we show that the shape transition is associated with an unstable branch in the force-torque relation, confirming the numerical predictions of Manghi et al. [Phys. Rev. Lett. 96, 068101 (2006)]. A linearized model of the fluid-structure interaction is proposed to account for all the features of the nonlinear Filament dynamics.

  • Rotational dynamics of a soft Filament: Wrapping transition and propulsive forces
    2008
    Co-Authors: Naïs Coq, Olivia Du Roure, Joel Marthelot, Denis Bartolo, Marc Fermigier
    Abstract:

    We analyze experimentally the shape of a long elastic Filament rotating in a viscous liquid. We identify a continuous but sharp transition from a straight to an helical shape, resulting from the competition between viscous stresses and elastic forces. This induced helicity generates a propulsive force along the axis of rotation. In addition, we show that the shape transition is associated with an unstable branch in the force-torque relation. A linearized model of the fluid-structure interaction is proposed to account for all the features of the non-linear Filament dynamics.

Olivia Du Roure - One of the best experts on this subject based on the ideXlab platform.

  • Rotational dynamics of a soft Filament: Wrapping transition and propulsive forces
    Physics of Fluids, 2008
    Co-Authors: Naïs Coq, Olivia Du Roure, Joel Marthelot, Denis Bartolo, Marc Fermigier
    Abstract:

    We experimentally analyze the shape of a long elastic Filament rotating in a viscous liquid. We identify a continuous but sharp transition from a straight to an helical shape, resulting from the competition between viscous stresses and elastic forces. This induced helicity generates a propulsive force along the axis of rotation. In addition, we show that the shape transition is associated with an unstable branch in the force-torque relation, confirming the numerical predictions of Manghi et al. [Phys. Rev. Lett. 96, 068101 (2006)]. A linearized model of the fluid-structure interaction is proposed to account for all the features of the nonlinear Filament dynamics.

  • Rotational dynamics of a soft Filament: Wrapping transition and propulsive forces
    2008
    Co-Authors: Naïs Coq, Olivia Du Roure, Joel Marthelot, Denis Bartolo, Marc Fermigier
    Abstract:

    We analyze experimentally the shape of a long elastic Filament rotating in a viscous liquid. We identify a continuous but sharp transition from a straight to an helical shape, resulting from the competition between viscous stresses and elastic forces. This induced helicity generates a propulsive force along the axis of rotation. In addition, we show that the shape transition is associated with an unstable branch in the force-torque relation. A linearized model of the fluid-structure interaction is proposed to account for all the features of the non-linear Filament dynamics.

Joel Marthelot - One of the best experts on this subject based on the ideXlab platform.

  • Rotational dynamics of a soft Filament: Wrapping transition and propulsive forces
    Physics of Fluids, 2008
    Co-Authors: Naïs Coq, Olivia Du Roure, Joel Marthelot, Denis Bartolo, Marc Fermigier
    Abstract:

    We experimentally analyze the shape of a long elastic Filament rotating in a viscous liquid. We identify a continuous but sharp transition from a straight to an helical shape, resulting from the competition between viscous stresses and elastic forces. This induced helicity generates a propulsive force along the axis of rotation. In addition, we show that the shape transition is associated with an unstable branch in the force-torque relation, confirming the numerical predictions of Manghi et al. [Phys. Rev. Lett. 96, 068101 (2006)]. A linearized model of the fluid-structure interaction is proposed to account for all the features of the nonlinear Filament dynamics.

  • Rotational dynamics of a soft Filament: Wrapping transition and propulsive forces
    2008
    Co-Authors: Naïs Coq, Olivia Du Roure, Joel Marthelot, Denis Bartolo, Marc Fermigier
    Abstract:

    We analyze experimentally the shape of a long elastic Filament rotating in a viscous liquid. We identify a continuous but sharp transition from a straight to an helical shape, resulting from the competition between viscous stresses and elastic forces. This induced helicity generates a propulsive force along the axis of rotation. In addition, we show that the shape transition is associated with an unstable branch in the force-torque relation. A linearized model of the fluid-structure interaction is proposed to account for all the features of the non-linear Filament dynamics.

Denis Bartolo - One of the best experts on this subject based on the ideXlab platform.

  • Rotational dynamics of a soft Filament: Wrapping transition and propulsive forces
    Physics of Fluids, 2008
    Co-Authors: Naïs Coq, Olivia Du Roure, Joel Marthelot, Denis Bartolo, Marc Fermigier
    Abstract:

    We experimentally analyze the shape of a long elastic Filament rotating in a viscous liquid. We identify a continuous but sharp transition from a straight to an helical shape, resulting from the competition between viscous stresses and elastic forces. This induced helicity generates a propulsive force along the axis of rotation. In addition, we show that the shape transition is associated with an unstable branch in the force-torque relation, confirming the numerical predictions of Manghi et al. [Phys. Rev. Lett. 96, 068101 (2006)]. A linearized model of the fluid-structure interaction is proposed to account for all the features of the nonlinear Filament dynamics.

  • Rotational dynamics of a soft Filament: Wrapping transition and propulsive forces
    2008
    Co-Authors: Naïs Coq, Olivia Du Roure, Joel Marthelot, Denis Bartolo, Marc Fermigier
    Abstract:

    We analyze experimentally the shape of a long elastic Filament rotating in a viscous liquid. We identify a continuous but sharp transition from a straight to an helical shape, resulting from the competition between viscous stresses and elastic forces. This induced helicity generates a propulsive force along the axis of rotation. In addition, we show that the shape transition is associated with an unstable branch in the force-torque relation. A linearized model of the fluid-structure interaction is proposed to account for all the features of the non-linear Filament dynamics.