A Study of Non‐Isothermal Non‐Newtonian Extrudate Swell by a Mixed Boundary Element and Finite Element Method
作者:
F. Sugeng,
N. Phan‐Thien,
R. I. Tanner,
期刊:
Journal of Rheology
(AIP Available online 1987)
卷期:
Volume 31,
issue 1
页码: 37-58
ISSN:0148-6055
年代: 1987
DOI:10.1122/1.549915
出版商: The Society of Rheology
数据来源: AIP
摘要:
Using a combination of boundary element methods, finite element methods and streamline tracking for stresses, we explore the coupling between temperature‐induced swelling and stress‐induced swelling for materials with temperature‐dependent properties and a single relaxation time. One sees an interactive effect; the temperature‐ and stress‐induced swellings are not simply additive. The change of swelling shape is also noticeable. Calculations are reported for a temperature‐dependent Maxwell model up to a Weissenberg number of 1.5, and Weissenberg numbers up to 4.0 with the PTT model; Péclet numbers up to 200 are considered.
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