| 精密点胶螺杆泵胶液流动分析与数值仿真 |
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| 引用本文： | 李章平,邓圭玲. 精密点胶螺杆泵胶液流动分析与数值仿真[J]. 中国机械工程, 2007, 18(17): 2102-2107 |
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| 作者姓名： | 李章平 邓圭玲 |
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| 作者单位： | 中南大学,长沙,410083 |
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| 基金项目： | 国家自然科学基金;教育部长江学者和创新团队发展计划 |
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| 摘 要： | 分析了胶液在精密点胶螺杆泵内的流动过程。把胶液在螺杆泵内的流动分成入口段、螺杆段和针头段三段进行分析;建立三维几何模型,利用流体仿真软件FLUENT对胶液在螺杆旋转条件下的流动过程进行数值模拟,得到了螺杆转速、螺槽尺寸、入口压力和针头大小等参数对挤胶量的影响规律。通过试验验证了仿真结果的合理性。研究结果为确定合理的螺杆泵几何参数及外部条件提供了理论依据。
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| 关 键 词： | 螺杆泵 胶液分配 非牛顿流体 滑动网格 |
| 文章编号： | 1004-132X（2007）17-2102-06 |
| 修稿时间： | 2006-04-072007-07-30 |
Numerical Simulations and Analysis of Three-dimensional Flows in the Archimedes Pump on Dispensing |
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| Li Zhangping,Deng Guiling. Numerical Simulations and Analysis of Three-dimensional Flows in the Archimedes Pump on Dispensing[J]. China Mechanical Engineering, 2007, 18(17): 2102-2107 |
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| Authors: | Li Zhangping Deng Guiling |
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| Affiliation: | Central South University, Changsha, 410083 |
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| Abstract: | The fluid flow in the archimedes pump on dispensing was analyzed. The flow process was divided into three sections, fluid feed path, screw and needle. The three-dimensional model was built, and the flow, when the screw was rotating, was simulated by using software Fluent. The effects on rotation velocity, the geometric dimensions of screw, inlet pressure and needle size etc. to mass flow rate were described. The simulation was proved to be reasonable by an experiment, which provides a theoretical hasis for choosing appropriate screw parameters and external conditions. |
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| Keywords: | archimedes pump dispensing non- Newtonian fluid sliding mesh |
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