The flow distribution of molten polymers in slit dies and coathanger dies through three‐dimensional finite element analysis
1991; Wiley; Volume: 31; Issue: 3 Linguagem: Inglês
10.1002/pen.760310308
ISSN1548-2634
Autores Tópico(s)Vibration and Dynamic Analysis
ResumoAbstract The isothermal flow of power‐law fluids in slit dies and coathanger dies is studied. A general three‐dimensional finite element code is developed for the purpose of flow analysis. The pressure distribution, the velocity distribution, and the transverse flow rate distribution are obtained. The effect of the die geometry on the flow distribution is critically discussed. It is found that a die channel with cross section of dog bone profile produces a flatter transverse flow rate distribution.
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