Numerical solution of fiber suspension flow through a parallel plate channel by coupling flow field with fiber orientation distribution

2001 ◽  
Vol 99 (2-3) ◽  
pp. 145-157 ◽  
Author(s):  
Kunji Chiba ◽  
Kazunori Yasuda ◽  
Kiyoji Nakamura
Keyword(s):  
Flow Field ◽  
Fiber Orientation ◽  
Parallel Plate ◽  
Orientation Distribution ◽  
Fiber Suspension ◽  
Suspension Flow ◽  
Fiber Orientation Distribution ◽  
Fiber Suspension Flow ◽  
Flow Through ◽  
Plate Channel

scholarly journals Fiber orientation in Fiber Suspension Flow through a Parallel Plate Channel and an Abrupt Contraction Channel

1991 ◽  
Vol 37 (3) ◽  
pp. 67-72 ◽  
Author(s):  
Kunji Chiba ◽  
Shigetoshi Hayashi ◽  
Kunio Kojima ◽  
Ki-Won Song ◽  
Kiyoji Nakamura ◽  
...  
Keyword(s):  
Fiber Orientation ◽  
Parallel Plate ◽  
Fiber Suspension ◽  
Suspension Flow ◽  
Fiber Suspension Flow ◽  
Flow Through ◽  
Abrupt Contraction ◽  
Plate Channel

Three Dimensional Simulation of Suspension Flow in a Mold Cavity

2010 ◽  
Author(s):  
Ahmed N. Oumer ◽  
Ahmed M. S. Ali ◽  
Othman B. Mamat
Keyword(s):  
Fourth Order ◽  
Fiber Orientation ◽  
Three Dimensional ◽  
Fiber Suspension ◽  
Suspension Flow ◽  
Cross Model ◽  
Suspension Flows ◽  
Orientation Tensor ◽  
Fiber Orientation Distribution ◽  
Dimensional Simulation

This paper presents three-dimensional simulation of fiber suspension flows in a cavity using the Finite Volume Method (FVM). The numerical simulation model described makes it possible to predict the propagation of the fiber-polymer solution and fiber orientation during the filling phase. Therefore, the objective of the work is to develop a Computational Fluid Dynamics (CFD) model to simulate and characterize the fiber suspension flow in three dimensional cavities. The model is intended to describe the fiber orientation distribution in three dimensional mold cavities. The continuity, momentum, energy and the fiber orientation equations are solved using the FVM. The flow is considered to be incompressible, non-isothermal, transient, and to behave as non-Newtonian fluid. A numerical analysis is presented to illustrate the application of the FVM to dilute suspension flows in injection molding processes. The volume-of-fluid method is employed to describe the flow of the two incompressible, immiscible phases, i.e., liquid suspension and air. Since the flow is a non-Newtonian, the Cross model is used to describe the shear-thinning behavior of the suspension. The governing equations of the flow and the fiber are implemented and solved by means of the open source code OpenFOAM. The evolution equation of the fiber orientation contains a fourth order orientation tensor which is approximated in terms of second order tensor through the use of appropriate closure rules. In this study the Hybrid closure model of Advani and Tucker is used to approximate the fourth order orientation tensor. To validate the numerical algorithm, test cases of suspension flow in a rectangular cavity are modeled for different fiber-polymer matrices. The numerical results are compared with available experimental findings and with those of Newtonian flows.

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