华东理工大学学报（自然科学版）2017，Vol.43Issue(2)：162-170,9.DOI:10.14135/j.cnki.1006-3080.2017.02.003
RTM中纤维结构对树脂浸渍影响的数值模拟
Numerical Simulation of the Influence of Fibrous Structure on Resin Filling in RTM Process
周云飞 1方荀 1王文琪 1郭卫红 1戴干策1
作者信息
- 1. 华东理工大学化学工程联合国家重点实验室,上海200237
- 折叠
摘要
Abstract
Reducing mold filling time and bubble content are the two key issues in Resin Transfer Molding (RTM).The two-phase flow model was built in this paper based on Newtonian fluid and NavierStokes equations.Combining the FVM with volume of fluid approach,a successful numerical simulation of isothermal filling stage was achieved.The changes of physical parameters in the filling stage,the influence of the fibrous structure and viscosity of the resin on mold filling time and the formation and exclusion of voids were analyzed.Moreover,there is a good agreement between numerical results and the analytical solutions as well as experimental results.The numerical results show that the model can accurately reflect the process of resin filling.For low viscous melt,pore width of woven fiber has the best horizontal and vertical size.In addition,increase of the viscosity of resin will affect the formation and the removal process of air bubbles in the fiber,thus influence the final mold filling time.关键词
充模时间/数值模拟/FVM/VOF/纤维结构Key words
mold filling time/numerical simulation/FVM/VOF/fibrous structure分类
通用工业技术引用本文复制引用
周云飞,方荀,王文琪,郭卫红,戴干策..RTM中纤维结构对树脂浸渍影响的数值模拟[J].华东理工大学学报（自然科学版）,2017,43(2):162-170,9.
