Comparative study of rhomboidal mixing sections using the boundary element method

被引：3
|
作者：
Rios, AC [1 ]
Osswald, TA [1 ]
机构：
[1] Univ Wisconsin, Dept Mech Engn, Polymer Proc Res Grp, Madison, WI 53706 USA
来源：
ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS | 2000年 / 24卷 / 01期
基金：
美国国家科学基金会;
关键词：
boundary elements; mixing; rhomboidal mixing sections; mixer analysis;
D O I：
10.1016/S0955-7997(99)00041-7
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The rhomboidal mixing section is becoming very popular in polymer extrusion to provide distributive mixing. Currently, several different designs are used but the details of the flow behavior and mixing efficiency is not well understood. This information is needed to be able to design and find the most efficient rhomboid geometry. In this research, nine different geometries with various pitches (helix of rhomboids) are analyzed using a three-dimensional boundary element method (BEM). The geometries are compared according to mixing efficiency, pressure and energy consumption. The investigation led ro the conclusion that the most effective distributive mixing sections were the ones with neutral rhomboids (pineapple mixer). However, the neutral rhomboidal mixing section consumes the most pressure in the extruder. (C) 2000 Elsevier Science Ltd. All rights reserved.
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页码：89 / 94
页数：6
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