The threedimensionflow field in the triple-screw extruder with triangle configuration is the research objects, including velocity field, pressure field and shear rate field etc.
本课题以三角形排列的三螺杆挤出机三维流场为研究目标，研究内容包括速度场、压力场、剪切速率场等。
2
Then it is used to solve the flow of PAM solution in a circular tube. The velocity and stress distributions obtained can be used for the threedimension numerical simulation in the future.
然后用拟谱法求解PAM水溶液在圆管中流动，得到速度分布、应力分布，为三维模拟作准备。
3
Hence, three-dimension plastic flow problems are translated into two-dimension problems, and the plastic velocity field function is given in special-shaped extruding.