Transient effect of a Boger fluid flowing around a confined cylinder
文献类型：期刊论文
| 作者 | Li, XF; Bu, HT; Zhao, DL |
| 刊名 | CHINESE JOURNAL OF POLYMER SCIENCE
 |
| 出版日期 | 2001-07-01 |
| 卷号 | 19期号:4页码:377-384 |
| 关键词 | Transient Effect Flow Around a Cylinder Lagrangian-eulerian Algorithm Oldroyd-b Model |
| ISSN号 | 0256-7679 |
| 英文摘要 | This paper is concerned with the numerical simulation of the transient effect of an inertialess Boger flow past a confined circular cylinder and the comparison of predictions with particle image velocimetry (PIV) measurements given by Shiang et al.. Dynamic simulation based on the Oldroyd-B constitutive model was carried out using a Lagrangian-Eulerian algorithm. The evolution of velocity field was obtained for the flow at two Deborah (De) numbers, i.e. De = 1.2 and 3.0. At low De, the flow reached steady state rapidly, and showed a symmetric flow regime. However, at high De, the time required to reach steady flow behind the cylinder increased significantly, and the distribution of the velocity field appears to be asymmetric with respect to the stagnation line. Fairly good agreement between the numerical results and the experimental observations is reported. It can be concluded that both the experimental measurements and the present simulations indicate that the elasticity of the polymeric flow strongly affect the flow regime of viscoelastic flow around a confined cylinder. |
| 语种 | 英语 |
| WOS记录号 | WOS:000169782300006 |
| 出版者 | SPRINGER-VERLAG BERLIN |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/77551]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Zhao, DL |
| 作者单位 | Chinese Acad Sci, Inst Chem, Ctr Mol Sci, State Key Lab Polymer Phys & Chem, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, XF,Bu, HT,Zhao, DL. Transient effect of a Boger fluid flowing around a confined cylinder[J]. CHINESE JOURNAL OF POLYMER SCIENCE,2001,19(4):377-384. |
| APA | Li, XF,Bu, HT,&Zhao, DL.(2001).Transient effect of a Boger fluid flowing around a confined cylinder.CHINESE JOURNAL OF POLYMER SCIENCE,19(4),377-384. |
| MLA | Li, XF,et al."Transient effect of a Boger fluid flowing around a confined cylinder".CHINESE JOURNAL OF POLYMER SCIENCE 19.4(2001):377-384. |
入库方式： OAI收割
来源：化学研究所
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