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Coupled Simulation of Squeeze Flow of Fiber Suspensions

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Coupled Simulation of Squeeze Flow of Fiber Suspensions

 

Anisotropic viscous constitutive relationships for the coupling of flow and fiber orientation analysis were implemented into a commercially available finite element code as a user subroutine. The implemented model was used for the coupled flow simulation of the squeezing flow of high aspect ratio and high volume fraction fiber suspensions with various initial orientation states to predict the flow front shape and fiber orientation evolution. For initial orientation states with preferential alignment, the coupled analysis was shown to predict a flow front which cannot be captured by an uncoupled analysis. The predicted flow front shape and fiber orientation evolution compare favorably with experimental data and predictions available in the literature. Additionally, comparisons with published work provide a validation test case for the developed method for coupled 3D simulation of anisotropic viscous flow and fiber orientation analysis.

 

Author: Drew Sommer

 

Conference: SAMPE Seattle 2017

 

SKU/Code: SE17--0731

Pages: 10





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