提出一种新型的能够保证熔体在口模出口处速度及压力均匀分布的片材机头。
A new type sheeting die which can guarantee the polymer fluid get the even velocity and pressure distribution at the mold export was put forward.
这样回避了速度梯度间断的困难，缓和了出口处应力奇性引起的矛盾，同时又减少了计算量。
Thus the difficulties of discontinuous velocity gradient and the stress singularity at the exit point are avoided, and the expense of computation is reduced.
计算得到的壁面压力分布、出口处液膜内轴向速度分布以及雾角大小都与实验结果吻合的很好。
The predicted results of the wall pressure distribution, axial velocity profiles at the outlet and the spray Angle agreed well with the experimental datum.
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