包装与食品机械2016，Vol.34Issue(2)：41-45,5.DOI:10.3969/j.issn.1005-1295.2016.02.011
基于有限差分法的食品包装材料不稳定性数值模拟
The Numerical Simulation of Instability of Food Packaging Materials Based on Finite Difference Method
朱玮慷 1黄秀玲1
作者信息
- 1. 上海大学机电工程与自动化学院，上海，200072
- 折叠
摘要
Abstract
The process of chemicals’migration in food package and their instability in food(simulants)is simulated using finite difference method.The migration prediction curves are achieved using Matlab.The re-sults show that the migration process is determined by diffusion coefficient D while the partition coefficient KPF represents the ratio of migrant concentration in packaging materials to that in foods at equilibrium.The concen-tration of migrants in foods at equilibrium increased with the increase of its initial concentration in packaging material Cin.While migration,the migrants may be unstable,which can result in the underestimate of their quantity.Lost function is used and prediction curves in 2 different lost mode is achieved.关键词
化学物迁移/数值模拟/不稳定性Key words
chemical migration/numerical simulation/instability分类
轻工纺织引用本文复制引用
朱玮慷,黄秀玲..基于有限差分法的食品包装材料不稳定性数值模拟[J].包装与食品机械,2016,34(2):41-45,5.
