摘要
基于HeleShaw流动模型推导出共注射成型充填模拟的数值模型基础上,通过引入厚度分数,采用控制体积法实现了充填过程中多重运动界面的追踪。等温数值模拟结果与MOLDFLOW的模拟结果相吻合,并能正确反映粘度对层厚分布的影响。
On the basis of the general Hele-Shaw flow model, therrmo-mechanical model describing the flow of polymers in the mold cavity was developed. With the introduction of thickness fraction of materials, control volume method was used to trace the moving interface during polymers mold filling. The results of isothermal numerical simulations agreed with that of MOLDFLOW and experiments, and could correctly describe the effects of viscosity on the distribution of core gapwise.
出处
《塑料工业》
CAS
CSCD
北大核心
2005年第3期32-35,共4页
China Plastics Industry
基金
国家自然科学基金资助(项目号:20274016)
江西省跨世纪学术带头人培养计划
江西省自然科学基金
江西省教委科教计划
国家留学回国人员科研启动基金资助。
关键词
共注射成型
充填模拟
运动界面追踪
控制体积法
HDPE
LDPE
Co-injection Molding
Numerical Simulation of Filling Process
Tracing of Moving Surface
Control Volume Method
HDPE
LDPE
