3. Orientation models

3.1 Single fiber, Newtonian fluid: Jeffery theory

Jeffery calculated the motion in a Newtonian fluid of a single ellipsoidal-shaped fiber, whose length is small enough for the deformation velocity field to be homogeneous around it. He obtained the following equation for the evolution of the p vector:

\frac{d p}{d t} = Ω p + λ (\dot{ε} p -

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Orientation models

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page Observation of fiber orientation

Orientation and flow modeling in injection molding and extrusion

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References

(1) - VINCENT (M.) - Étude de l'orientation des fibres de verre courtes lors de la mise en œuvre de thermoplastiques chargés. - Thèse de doctorat, École des mines de Paris (1984).
(2) - DARLINGTON (M.W.), McGINLEY (P.L.) - Fibre orientation distribution in short fibre...

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