江苏大学学报（自然科学版）2016，Vol.37Issue(2)：147-154,8.DOI:10.3969/j.issn.1671-7775.2016.02.005
中浓度纸浆流变特性的数值模拟
Numerical simulation of rheological properties for medium consistency pulp
摘要
Abstract
To investigate the flowing characteristic of medium consistency pulp in shear force and discover the variety law in rheological process,the numerical simulation was conducted to analyze the flowing characteristic of medium consistency pulp in a rotating tester.With the consideration of the effects of air and fiber on the rheological property of fiber suspension,considering the pulp flowing as Herschel Bulkley fluid with yield stress and shear thinning characteristic,a numerical simulation method was developed. The yield process in gradually increased shear stress was discussed.The effects of material physical parameters and rotating tester size were analyzed.The results show that in the shear indoor,the pulp viscosity decreases and the yielding areas increase with the increasing of rotational speed.With the increasing of shearing chamber diameter,the pulp viscosity is increased with decreased sporting area.For the same rotational speed,with the increasing of yield stress,the pulp viscosity increases.With the increasing of apparent viscosity,the pulp viscosity increases,and the sporting area decreases.With the increasing of shear thinning index,the pulp viscosity decreases,and the sporting area increases.关键词
中浓度纸浆/流变特性/赫巴流体/屈服应力/数值模拟Key words
medium consistency pulp/rheological property/Herschel Bulkley fluid/yield stress分类
轻工纺织引用本文复制引用
李红,薛志宽,叶道星..中浓度纸浆流变特性的数值模拟[J].江苏大学学报（自然科学版）,2016,37(2):147-154,8.基金项目
国家自然科学基金资助项目（51279068）；国家科技支撑计划项目 （）
