Answers are grounded in this paper and cite their sources.
The multilayer stratified flow of several polymers in a flat coat‐hanger die was modeled using a finite element method. The problem was formulated using the lubrication approximation theory. A solution procedure in decoupling pressure and streamlines was developed. This new method is very powerful in comparison with more classical approaches, permitting the solution of flow problems involving a great number of layers in a complex industrial geometry. It allows us to obtain, among other things, pressure field, streamlines, residence times, and the values of the interface positions in the whole die.
No takes yet. Share an insight, caveat, or question.
Puissant et al. (1994) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: