| 聚合物稀溶液对同心旋转圆柱间层流失稳的影响 |
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| 引用本文： | 王海林,李忠.聚合物稀溶液对同心旋转圆柱间层流失稳的影响[J].机械科学与技术(西安),1999,18(5):780-782. |
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| 作者姓名： | 王海林 李忠 |
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| 作者单位： | 西安交通大学润滑理论与轴承研究所!西安710049 |
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| 摘 要： | 根据有效粘度模型，利用原始变量法计算了聚合物稀溶液对无限长同心旋转间流体流动层流失稳的影响。讨论了不同浓度的聚氧化乙烯（ Ｐｏｌｙｏｘ Ｗ Ｓ Ｒ３０１）水溶液对临界 Ｔａｙｌｏｒ数以及速度场的影响。计算结果表明，聚合物稀溶液减缓了扰动速度的增长，能有效地抑制流体的层流失稳。
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| 关 键 词： | 聚合物稀溶液 减阻 稳定性 |
The Effect of Dilute Polymer Solution on Flow Instability in Concentric Rotating Cylinders |
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| Wang Hailin,Li Zhong,Zhu Jun.The Effect of Dilute Polymer Solution on Flow Instability in Concentric Rotating Cylinders[J].Mechanical Science and Technology,1999,18(5):780-782. |
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| Authors: | Wang Hailin Li Zhong Zhu Jun |
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| Abstract: | In this paper, based on the effective viscosity model, the effect of dilute polymer solution on laminar flow instability in infinite length concentric rotating cylinders is computed by means of the primitive variation method. It discusses that the effect of difference Polyethylene Oxide (Polyox WSR301) concentration in water solution on critical Taylor number and the velocity fields. The results show that dilute polymer solution decreases the disturbed velocity and restraints the flow instability effectively. |
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| Keywords: | Polymer dilute solution Drag reduction Stability |
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