化工进展2011，Vol.30Issue(8)：1681-1686,1692,7.
聚合物溶液搅拌流场PIV测量初步
PIV measurements of polymer solution in stirred tank
摘要
Abstract
The agitated flow field of polymer solution,which has been widely used to enhanced oil recovery in China,was measured by using particle image velocimetry（PIV）.It was found that because the polymer solution has the properties of significant viscoelasticity,low transparency and irreplaceability by any clear liquid,the camera in PIV system could not shoot the distanced images of tracer particle in polymer solution at the concentration above 1000 mg/L,even with greater size tracer particle and higher laser intensity.The flow field stirred by double helical ribbon and screw impeller in the polymer solution at the concentration of 1000 mg/L and 500 mg/L showed axial circulation characteristics,unlike the flow field agitated by disk or sphere in polymer solution which showed reverse secondary flow.In laminar region,the agitation speed and solution concentration had little effect on the whole circulation flow feature in stirred tank.Research in this paper indicated that double helical ribbon screw impeller was suitable for agitating and mixing the polymer solution.关键词
粒子图像成像仪/聚合物溶液/黏弹特征/示踪粒子/双螺带螺杆桨Key words
particle image velocimetry/polymer solution/viscoelastic property/tracer particle/double helical ribbon and screw impeller分类
化学化工引用本文复制引用
张敏革,张吕鸿,姜斌,李鑫钢..聚合物溶液搅拌流场PIV测量初步[J].化工进展,2011,30(8):1681-1686,1692,7.基金项目
中国博士后科学基金项目 （）
