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Newtonian die swell evaluation for axisymmetric tube exits using a finite element method

✍ Scribed by W. Allan

Publisher: John Wiley and Sons
Year: 1977
Tongue: English
Weight: 377 KB
Volume: 11
Category: Article
ISSN: 0029-5981
DOI: 10.1002/nme.1620111011

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✦ Synopsis

Abstract

Using a finite element method, a value of 13.2 per cent is obtained for the die swell of a highly‐viscous Newtonian fluid flowing at very low Reynolds number from a circular tube of constant radius. The same method is then used to obtain die swell values for a variety of axisymmetric tube exits. It is found that, in general, conical constrictions at or near the tube exit result in a decrease in die swell, while conical expansions increase the die swell.

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