Ecole Polytechnique de Montréal, Départment de Mathématiques Appliquées, CP 6079, succ. A, Montrél H3C 3A7 Canada.
Prediction of stationary interfaces in coextrusion flows
Article first published online: 26 AUG 2004
Copyright © 1994 Society of Plastics Engineers
Polymer Engineering & Science
Volume 34, Issue 14, pages 1101–1108, July 1994
How to Cite
Agassant, J. F., Fortin, A. and Demay, Y. (1994), Prediction of stationary interfaces in coextrusion flows. Polym Eng Sci, 34: 1101–1108. doi: 10.1002/pen.760341402
- Issue published online: 26 AUG 2004
- Article first published online: 26 AUG 2004
- Manuscript Received: 5 AUG 1992
A computation method for the development of the interface in coextrusion flows is proposed. It is based on the transformation of the nonmixing condition at the interface into a transport equation of the rheological constants in the whole domain. The coextrusion flow of a Newtonian fluid and of a Carreau fluid is tested. It is pointed out that the interface location is strongly dependent on the flow rate and on the flow rate ratio.