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A variety of different forms of closure approximations have been proposed. The following models are available in Autodesk Simulation Moldflow Insight:
Model proposed by Advani and Tucker in 1987. S.G. Advani and C.L. Tucker, The Use of Tensors to Describe and Predict Fiber Orientation in Short Fiber Composites
, J. Rheol., 31, 751-784 (1987).
- Orthotropic 1–Orthotropic 4
Denote a family of closure approximations based on fitting particular solutions to exact solutions of the probability density function in a few well-defined flow fields, proposed by Cintra and Tucker in 1995. J.S. Cintra and C.L. Tucker, Orthotropic Closure Approximations for Flow-induced Fiber Orientation
, J. Rheol. 39, 1095-1122 (1995).
Note The default model will be appropriate for most simulations. The alternative options have been provided for specialist users conducting research into the fluid mechanics of fiber-filled materials.