Microstructures of Polymer Solutions of Flow Past a Confined Cylinder
Microstructures of Polymer Solutions of Flow Past a Confined Cylinder
复制标题
DOI：
10.1080/03602550903413821
复制
发表时间：
2010-04
影响因子：
--
通讯作者：
Chunlei Ruan;J. Ouyang
中科院分区：
文献类型：
--
作者：
Chunlei Ruan;J. Ouyang
通过使用 FENE-P 模型和 PTT 模型，数值模拟研究了聚合物溶液通过对称/非对称约束圆柱体的流动。提出了一种非结构三角网格的并置有限体积法，并通过将预测的速度和应力逐点与相应文献中的实验数据和数值结果进行比较，证明了其有效性。通过分析FENE-P模型中的构象张量信息，研究聚合物溶液的微观结构，包括分子取向、延伸、变形、缠结等。目前的结果希望能够对复杂流动的微观有更多的了解，并为工业应用提供更多帮助。
Numerical simulation is used to investigate the flow of polymer solutions past a symmetrically/asymmetrically confined cylinder by using FENE-P model and PTT model. A collocated finite volume method on unstructured triangular meshes is presented and its validity is proved by comparing the predicted velocity and stress point-wise with experimental data and numerical results in corresponding references. Microstructures of polymer solutions, including molecular orientation, extension, deformation, entanglement, are investigated through analyzing the information of conformation tensor in FENE-P model. Present results are hoping to give more insight into microscopic of complex flows and be more helpful to the industrial application.