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基于OpenFOAM求解聚合物加工的高Wi数流动

Solving the High Wissenberg Flow of Polymer Processing Based on OpenFOAM

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【Author】 CHEN Dilin;ZHANG Lai;LI Jie;CHEN Haiwen;QIAN Shizhi;Institute of Energy and Power Engineering,Wuhan University of Technology;Institute of Micro/Nanotechnology,Old Dominion University;

【通讯作者】李捷;

【机构】武汉理工大学能源与动力工程学院；老道明大学微纳米技术学院；

【摘要】随着船舶船体材料向轻型化发展,夹层结构的广阔运用前景越来越依赖聚合物成型工艺的突破.文中选用黏弹性DCPP本构模型,针对聚合物加工过程中广泛存在的腰圆形功能块收缩流动进行了仿真,揭示其流动特征及相关支化行为特征.运用开源流体计算工具OpenFOAM实现黏弹性流体流动分析.更多还原

【Abstract】 With the development of lightweight ship hull materials, the broad application prospect of sandwich structures increasingly depends on the breakthrough of polymer molding technology. In this paper, the viscoelastic DCPP constitutive model was used to simulate the shrinkage flow of waist-shaped functional block widely existing in polymer processing, and its flow characteristics and related branching behavior characteristics were revealed. OpenFOAM, an open source fluid calculation tool, is used to analyze the viscoelastic fluid flow.更多还原

【关键词】黏弹性流体； DCPP模型；第一法向应力差；特征主应力差；维森伯格数；数值模拟；有限体积法； OpenFOAM；
【Key words】 viscoelastic fluid； DCPP model； first normal stress difference； principal stress difference； Weissenberg number； numerical simulation； finite volume method； OpenFOAM；

【基金】国家自然科学基金项目资助(51806157)

【文献出处】武汉理工大学学报(交通科学与工程版) ,Journal of Wuhan University of Technology(Transportation Science & Engineering) , 编辑部邮箱 ,2020年05期

【分类号】U671
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