| Parameters Relevant to Bubble Detachment when Gas-injecting into Polymer Melt Flow Field |
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| 引用本文： | CHENZailiang CAIYebin GUOMingcheng PENGYucheng. Parameters Relevant to Bubble Detachment when Gas-injecting into Polymer Melt Flow Field[J]. 武汉理工大学学报(材料科学英文版), 2005, 20(1): 68-71. DOI: 10.1007/BF02870877 |
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| 作者姓名： | CHENZailiang CAIYebin GUOMingcheng PENGYucheng |
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| 作者单位： | [1]CollegeofMechanicalandElectricalEngineering,SoochowUniversity,Suzhou215021,China [2]CollegeofMechanicalandEngineering,SouthChinaUniversityofTechnology,Guangzhou510640,China |
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| 基金项目： | Funded by the National Nature Science Foundation of China(No.19632004,No.10172074)，the Research Foundation for the Doctor al Program of Higher Education of China (No.98056113)，Guang dong Province Nature Science Foundation ( No. 980573, No.0401154) |
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| 摘 要： | The bubble deformation processes were reported when gas was injected into polymer melt flow field in another paper, the experiments showed that the deformation was severely affected by the volume of the bubble, and in turn, for the different bubbles, several different deformation processes were presented during their movement along the flow channel. In addition, we could find that the magnitude of the bubble volume was dependent upon the pressure difference of the gas injection pressure and the melt pressure, In this paper, more experimental conditions were changed to investigate the parameters relevant to the detachment of bubbles from the injection nozzle. The experimental results show that the pressure difference, the melt flow velocity as well as the melt pressure were all critical for the purameters, such as the bubble detachment time, the maximum bubble diometers and the magnitude of the bubble volume. The morphology changes of bubble were very large when the flow field was abruptly changed, and the situations were more complicated.
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| 关 键 词： | 气泡 形态学 分离时间 几何参数 流场 |
| 收稿时间： | 2004-03-15 |
| 修稿时间： | 2004-10-23 |
Parameters relevant to bubble detachment when gas-injecting into polymer melt flow field |
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| Chen Zailiang Ph D,Cai Yebin,Guo Mingcheng,Peng Yucheng. Parameters relevant to bubble detachment when gas-injecting into polymer melt flow field[J]. Journal of Wuhan University of Technology. Materials Science Edition, 2005, 20(1): 68-71. DOI: 10.1007/BF02870877 |
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| Authors: | Chen Zailiang Ph D Cai Yebin Guo Mingcheng Peng Yucheng |
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| Affiliation: | (1) College of Mechanical and Electrical Engineering, Soochow University, 215021 Suzhou, China;(2) College of Mechanical and Engineering, South China University of Technology, 510640 Guangzhou, China |
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| Abstract: | The bubble deformation processes were reported when gas was injected into polyme r melt flow field in another paper, the experiments showed that the deformation was severely affected by the volume of the bubble, and in turn, for the different bubbles, several different deformation processes were presented d uring their movement along the flow channel. In addition, we could find that the magnitude of the bubble volume was dependent upon the pressure difference of th e gas injection pressure and the melt pressure. In this paper, more experimental conditions were changed to investigate the parameters relevant to the detachmen t of bubbles from the injection nozzle. The experimental results show that the p ressure difference, the melt flow velocity as well as the melt pressure were all critical for the parameters, such as the bubble detachment time, the maximum bu bble diameters and the magnitude of the bubble volume. The morphology changes of bubble were very large when the flow field was abruptly changed, and the situat ions were more complicated. |
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| Keywords: | bubble morphology detachment time geometry parameters flow field |
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