| 新型锥形双螺杆混合元件三维流场分析 |
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| 引用本文： | 刘志芳 冯连勋 等. 新型锥形双螺杆混合元件三维流场分析[J]. 中国塑料, 2002, 16(2): 87-95 |
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| 作者姓名： | 刘志芳 冯连勋 等 |
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| 作者单位： | 北京化工大学机电工程学院，北京化工大学机电工程学院，北京化工大学机电工程学院 北京，100029，北京，100029，北京，100029 |
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| 摘 要： | 利用ANSYS有限元分析软件对带有混合块的新型锥形双螺杆的混合段流场进行了三维模拟分析，通过速度场求出流量，并求出剪切速率，剪切应力及回流量来衡量混合效果，找出了混合块几何条件（间隙，错列角）及操作条件（转速，压差等）对挤出机混合效果的影响。
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| 关 键 词： | 锥形双螺杆 三维流场 混合元件 速度场 流量 剪切速率 剪切应力 |
Analysis and Comparsion of Three-Dimensional Flow Field of Mixing Element in New Conical Twin Screw |
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| LIU Zhi-fang,FENG Lian-xun,DONG Li-qun. Analysis and Comparsion of Three-Dimensional Flow Field of Mixing Element in New Conical Twin Screw[J]. China Plastics, 2002, 16(2): 87-95 |
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| Authors: | LIU Zhi-fang FENG Lian-xun DONG Li-qun |
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| Abstract: | Three-dimensional flow simulation of mixing blocks in a conical twin screw extruder is performed with a fi nite element package, ANSYS. Goal of these calculations is to study the dependence of several factors that influence mixing, such as shear rate, shear stress, on design variables(tolerance and stagger angle) and processing conditions(ro-taing speeds and axial pressure gradient). Pressure profiles of barrel surface and nip region are obtained. |
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| Keywords: | conical twin screw extruder three-dimensional flow field mixing element |
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