» Home » Search

Search WoM

Fields:

Export resources

You have chosen to export the information about resources from the result of your search for 'fibers' as a netscape bookmark file.

This data can be downloaded and then, e.g., be imported in your browser.

Search Results

We found 6 Resources matching fibers

Resources 1-6:

Showing 10 20 30 50 100 items per page
Sort by:
  • Uniaxial Spinning of Viscous Fibers

    Views: 160 Average Rating:
    •  
    In the considered spinning processes a viscous fiber is obtained by the continuous extrusion of a molten granular through a narrow nozzle in direction of gravity. Thereby, cross-section and mean inflow velocity at the nozzle are given. The temporal evolution of the fiber length as well as the cross-sections and velocities in the fiber domain are described by a simplified one-dimensional model that can be deduced f...
    Tags: fibersfree_boundary_value_problemspinning
    Added by Martin on 2011-07-12 16:11


    Uniaxial Spinning of Viscous Fibers In the considered spinning processes a viscous fiber is obtained by the continuous extrusion of a molten granular through a narrow nozzle in direction of gravity. Thereby, cross-section and mean inflow velocity at the nozzle are given. The temporal evolution of the fiber length as well as the cross-sections and velocities in the fiber domain are described by a simplified one-dimensional model that can be deduced from the three-dimensional Navier-Stokes equations for a Newtonian fluid via asymptotic analysis. Preparation and spinning of textile fibres Stokes and Navier-Stokes equations Navier-Stokes equations Free boundary problems for PDE
  • Stochastic Air Drag Model for Fibers in Turbulent Flows

    Views: 199 Average Rating:
    •  
    No description available
    Tags: fibersturbulent_flows
    Added by Martin on 2011-07-12 16:02


    Stochastic Air Drag Model for Fibers in Turbulent Flows
  • Inextensible Elastic Strings in Turbulent Flows

    Views: 189 Average Rating:
    •  
    The model at hand is an extension of the ”Dynamics of Inextensible Elastic Strings”. Here, two functions to model deterministic aerodynamic forces as well as stochastic ones due to turbulence have been incorporated. The stochastic term is a white noise and changes the type of the evolution equation from a PDE to a SPDE (stochastic partial diff...
    Tags: elastic_stringsfibersturbulent_flows
    Added by Martin on 2011-07-12 15:23


    Inextensible Elastic Strings in Turbulent Flows The model at hand is an extension of the {link:/AloeView/action/resourceDetailed?resourceId=n4qOwXC|”Dynamics of Inextensible Elastic Strings”}. Here, two functions to model deterministic aerodynamic forces as well as stochastic ones due to turbulence have been incorporated. The stochastic term is a white noise and changes the type of the evolution equation from a PDE to a SPDE (stochastic partial differential equation). In ”Stochastic Air Drag Model for Fibers in Turbulent Flows” both functions are specified in terms of an air drag model and a model for the so-called turbulence drag amplitude. In this way an one way coupling of the dynamics of fibers and of turbulent flows might be realized.
  • Dynamics of Viscous Jets

    Views: 187 Average Rating:
    •  
    Viscous jets are of interest in many industrial applications, e.g. drawing, tapering and spinning of glass and polymer fibers. Especially in rotational spinning processes one has to consider curved in-stationary jets.

    Here, we use the description of the jet as a special one-dimensional Cosserat continuum following the formulation in Antman - a geometrically correct one-dimensional description based on p...
    Tags: cosserat_rodsfibersrodsviscous_jets
    Added by Martin on 2011-07-12 12:25


    Dynamics of Viscous Jets Viscous jets are of interest in many industrial applications, e.g. drawing, tapering and spinning of glass and polymer fibers. Especially in rotational spinning processes one has to consider curved in-stationary jets. Here, we use the description of the jet as a special one-dimensional Cosserat continuum following the formulation in Antman - a geometrically correct one-dimensional description based on partial differential equations. As for a classical Cosserat rod in elasticity, a jet in the three-dimensional Euclidian space is geometrically characterized by a curve for the position of the jet and by a field of elements of the rotational group SO(3) for the orientation of its cross-sections. In our jet model we make use of the so-called Kirchhoff-constraint, i.e. the cross-sections are assumed to be perpendicular to the tangent of the curve.
  • Dynamics of Inextensible Elastic Strings

    Views: 289 Average Rating:
    •  
    The model at hand plays a central role for the simulation of fiber dynamics, e.g. in textile and non-woven production processes.
    Tags: elastic_stringsfibers
    Added by Martin on 2011-07-12 12:22


    Dynamics of Inextensible Elastic Strings The model at hand plays a central role for the simulation of fiber dynamics, e.g. in textile and non-woven production processes.
  • Dynamics of Elastic Rods

    Views: 229 Average Rating:
    •  
    Elastic rods are considered in many fields of science and technology, for example in different production processes of fibers. For the simulation of their dynamics the correct description of the local and global physical properties and reasonable computation times are the essential requirements. Here, we use the description of the rod as a special one-dimensional Cosserat continuum following the formulation in Ant...
    Tags: cosserat_rodselastic_rodsfibersrods
    Added by Martin on 2011-07-12 12:06


    Dynamics of Elastic Rods Elastic rods are considered in many fields of science and technology, for example in different production processes of fibers. For the simulation of their dynamics the correct description of the local and global physical properties and reasonable computation times are the essential requirements. Here, we use the description of the rod as a special one-dimensional Cosserat continuum following the formulation in Antman - a geometrically correct one-dimensional description based on partial differential equations. This type of modeling fulfills the above requirements with respect to simplicity and correctness.