Application of Computational Fluid Dynamics to Design of Polymer Extrusion Dies

被引：0
|
作者：
Hagioka, N. [1 ]
Fukuoka, H. [1 ]
Minegishi, Y. [2 ]
Kodama, K. [2 ]
机构：
[1] Natl Inst Technol, Nara Coll, 22 Yata Cho, Yamato Koriyama, Nara 6391058, Japan
[2] ASKA Corp, 458-1 Minosho Cho, Yamato Koriyama, Nara 6391103, Japan
来源：
9TH THAI SOCIETY OF MECHANICAL ENGINEERS, INTERNATIONAL CONFERENCE ON MECHANICAL ENGINEERING (TSME-ICOME 2018) | 2019年 / 501卷
关键词：
D O I：
10.1088/1757-899X/501/1/012061
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
Extrusion is one of the most widely used processes for polymer processing, e.g., producing film, pipe, sheet, cable and pellet. The shape of extrusion die has an important part for the manufacturing products. The purpose of this study has been to confirm the influence of nozzle shape on polymer flow. We calculated the die flow simulations in the various parameters. The calculation results are expected to improve the efficiency of pelletization. A commercial computer fluid dynamics program Ansys Fluent was used to calculate the die passage. The parameters for the calculations were taper angle, outlet diameter, properties of polymer and two models. The governing equations were the incompressible momentum equation and the continuity equation. As results, the increase in flow rate was confirmed by increasing taper angle and outlet diameter in the specific dimensional range. The average outlet velocity of single and multi-nozzle models almost corresponded in each same parameter.
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页数：6
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