1. Optimal control of a turbulent fibre suspension flowing in a planar contraction.
- Author
-
Mäkinen, Raino A. E. and Hämäläinen, Jari
- Subjects
- *
FINITE element method , *NUMERICAL analysis , *CAD/CAM systems , *SEPARATION (Technology) , *MATHEMATICAL optimization - Abstract
Fibre orientation distribution of a turbulent fibre suspension flowing in a planar contraction is considered. The fibre orientation is modelled using a diffusion–convection-type equation while the average flow velocity of the suspension is modelled using a simple one-dimensional model. Our aim is to control the fibre orientation distribution at the end of the contraction by changing its shape. The shape is discretized with Bezier function and the diffusion–convection equation with streamline upwind Petrov–Galerkin (SUPG) finite element method. Algebraic sensitivity analysis for the discretized optimization problem is done with the aid of automatic differentiation techniques. Numerical examples are given. Copyright © 2005 John Wiley & Sons, Ltd. [ABSTRACT FROM AUTHOR]
- Published
- 2006
- Full Text
- View/download PDF