中国塑料 ›› 2022, Vol. 36 ›› Issue (4): 95-101.DOI: 10.19491/j.issn.1001-9278.2022.04.015

• 加工与应用 • 上一篇    下一篇

波状双螺杆元件混炼性能的数值模拟

班董董1, 王丹华2, 刘奎3, 李亚楠4, 李涵1, 戴亚辉1()   

  1. 1.河南理工大学材料科学与工程学院,河南 焦作 454000
    2.焦作市制动器有限公司,河南 焦作 454950
    3.焦作市质量技术监督检验测试中心,河南 焦作 454003
    4.多氟多化工股份有限公司,河南 焦作 454006
  • 收稿日期:2021-10-25 出版日期:2022-04-26 发布日期:2022-04-24
  • 通讯作者: 戴亚辉(1962-),男,副教授,主要从事聚合物基共混体系的高性能化、功能化研究,daiyahuixp@hpu.edu.cn
    E-mail:daiyahuixp@hpu.edu.cn
  • 基金资助:
    国家自然科学基金项目(51574113)

Numerical simulation on mixing properties of wavy twin⁃screw elements

BAN Dongdong1, WANG Danhua2, LIU Kui3, LI Yanan4, LI Han1, DAI Yahui1()   

  1. 1.School of Material Science and Engineering,Henan Polytechnic University,Jiaozuo 454000,China
    2.Jiaozuo Brake Co,Ltd,Jiaozuo 454950,China
    3.Jiaozuo Quality and Technical Supervision Inspection and Testing Center,Jiaozuo 454003,China
    4.Do?Fluoride Chemicals Co,Ltd,Jiaozuo 454006,China
  • Received:2021-10-25 Online:2022-04-26 Published:2022-04-24
  • Contact: DAI Yahui E-mail:daiyahuixp@hpu.edu.cn

摘要:

借助聚合物流动分析软件Polyflow对半啮合同向/异向波状双螺杆元件和全啮合同向/异向常规双螺杆元件进行流场和混合性能的数值模拟,分析比较两者的剪切速率、混合指数、非弹性应力张量第一特征值、停留时间、时均混合效率、分离尺度等表征混合性能的特征参数,模拟分析结果表明,波状双螺杆元件具有更加优异的混炼性能。

关键词: 波状双螺杆元件, 数值模拟, 混炼性能

Abstract:

A numerical simulation was conducted on the flow field and mixing properties of half intermeshing co?rotating/counter?rotating wavy twin?screw elements and intermeshing co?rotating/counter?rotating routine twin?screw elements using the Polyflow? CFD software. The mixing performance of the two elements was investigated comparatively using the shear rate, mixing index, first characteristic value of inelastic stress tensor, residence time, time?averaged mixing efficiency, segregation scale, and other characteristic parameters. The simulation results indicated that the wavy twin?screw elements exhibited better mixing properties.

Key words: wavy twin?screw element, numerical simulation, mixing property

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