An analysis of the effect of elongational viscosity on the flow in a spiral-mandrel die

被引：11
|
作者：
Sun, Y. [1 ]
Gupta, M. [1 ]
机构：
[1] Michigan Technol Univ, Mech Engn Engn Mech Dept, Houghton, MI 49931 USA
来源：
ADVANCES IN POLYMER TECHNOLOGY | 2006年 / 25卷 / 02期
关键词：
LDPE; rheology; simulation; spiral die; viscosity;
D O I：
10.1002/adv.20061
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
A three-dimensional flow of a low-density polyethylene in a spiral-mandrel die for a blown-film extrusion is simulated. The effect of elongational viscosity on the flow in the spiral-mandrel die is analyzed. Elongational viscosity is found to have only a minor effect on the velocity distribution, but a significant effect on the pressure and temperature distributions in the die. (c) 2006 Wiley Periodicals, Inc.
引用
收藏
页码：90 / 97
页数：8
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