单螺杆挤出机计量段中非牛顿流体缓慢流动分析  

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

作　　者：方园[1] 刘娜[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1期125-127,共3页Journal of Beijing University of Chemical Technology(Natural Science Edition)

基　　金：国家自然科学基金(10971215)

摘　　要：讨论了不可压缩Carreau型非牛顿流体在单螺杆挤出机计量段的流动问题。在缓慢流动的假设下,给出了其定常流动问题的唯一可解性,明确了其解所存在的函数空间,为进一步的数值计算提供了理论基础。The boundary problem of stationary flow for incompressible non-Newtonian fluids in the metering section of a single screw extruder has been investigated. Under the assumption of slow flow, given the unique solvability of the corresponding mathematical model and by proving the function space of the stationary flows, the analysis pro- vides a theoretical 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]