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Year:
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Issue:
THE LAGRANGIAN-EULERIAN METHOD:SOLUTIONS FOR PLANAR CONTRACTION FLOW
Author(s):
LI Xianfeng
,
YUAN Xuefeng
,
BU Huaitian
,
ZHAO Delu
Pages:
432
-
437
Year:
2000
Issue:
4
Journal:
ACTA POLYMERICA SINICA
Keyword:
拉格朗日-欧拉方法
;
平面收缩流动
;
Abstract:
为验证拉格朗日-欧拉方法的准确性,对高分子溶液的4:1平面收缩流动问题进行了数值模拟,采用单松弛时间的Phan Thien-Tanner本构方程,得到PIB/C14溶液在De=3.0的收缩流动的计算结果,同Quinzani等所做的收缩流动实验中的稳态流场物理量的测量结果进行了比较,在定量上取得较好的一致性.证明拉格朗日-欧拉方法能够在定性上乃至在定量上准确地预报高分子复杂流体的流动行为,在描述真实的物理过程时是合理、准确的.
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