摘要
基于CFD(Computational Fluid Dynamics)数值方法 VOF(Volume of Fluid)模型,利用FLUENT软件对彩涂板生产过程中带料辊空转的情况进行了数值模拟,研究了带料辊旋转速度、涂料盘内的涂料量、涂料盘的尺寸、进出口位置以及涂料进口的速度对涂料起泡性和涂层均匀性的影响.数值结果表明,对生产彩涂板来说,带料辊旋转速度越大,涂层的均匀性越差;涂料盘里的涂料高度越高,涂料较容易发生起泡现象;涂料盘长度和宽度越大,涂层的均匀性相对越好;涂料进口速度越大,涂料的起泡性越强;涂料盘进、出口位置也会对涂层均匀性造成影响.
Basing on the Volume of Fluid( VOF) model of Computational Fluid Dynamics( CFD),the 3-D numerical simulation of the idling furnish roll in the producing process for color-coated sheet was performed with the FLUENT software. And the effects of some parameters on the uniformity of coatings were analyzed,such as the rotation speed of furnish roll,the amount of lacquer in the plate,the size of lacquer plate,the inlet and outlet locations of lacquer plate and the inlet velocity of the lacquer. For producing the color-coated sheets,numerical results show that the uniformity of coatings becomes worse as the rotation speed of the furnish roll increases; the higher the lacquer height in the plate is,the easier it emerges foams; the uniformity of coatings becomes better as the length and width of lacquer plate increase; the ability of producing the foams becomes stronger as the inlet velocity increases; the inlet and outlet locations of lacquer plate also influence the uniformity of coatings.
出处
《工程科学学报》
EI
CSCD
北大核心
2015年第S1期90-97,共8页
Chinese Journal of Engineering
关键词
彩涂板
带料辊
均匀性
非牛顿流体
数值模拟
color-coated sheet
furnish roll
uniformity
non-Newtonian fluid
numerical simulation
