单螺杆挤出机计量段中非牛顿流体定常流动分析  

Analysis of the stationary flow of non-Newtonian fluids in the metering section of a single screw extruder

作　　者：方园[1] 陈亚洲[1] 施小丁[1] 

机构地区：[1]北京化工大学理学院,北京100029

出　　处：《北京化工大学学报（自然科学版）》2013年第2期121-124,共4页Journal of Beijing University of Chemical Technology(Natural Science Edition)

基　　金：国家自然科学基金(10971215)

摘　　要：在熔体为等温不可压缩的均匀定常流且充满螺槽的前提下讨论不可压缩Carreau型非牛顿流体在单螺杆挤出机计量段的定常流动问题,分析了其相应数学模型的解的结构,为进一步的数值计算奠定了基础。The boundary problem of stationary flow for incompressible non-Newtonian fluids in the metering section of a single screw extruder has been investigated. With the assumption of slow flow and without neglect of convec- tion, the analysis of the solution structure and the uniqueness of the corresponding mathematical model provide the basis for further numerical calculations.

关 键 词：非牛顿流体 单螺杆挤出机 定常流动 

分 类 号：O175.2[理学—数学]