Lattice-Boltzmann lattice-spring simulations of two flexible fibers settling in moderate Reynolds number flows

被引：6
|
作者：
Alhasan, Ahmed Abdulkareem [1 ]
Luo, Ye [1 ]
Wu, Tai-Hsien [1 ]
He, Guowei [2 ]
Qi, Dewei [1 ]
机构：
[1] Western Michigan Univ, Dept Chem & Paper Engn, Kalamazoo, MI 49008 USA
[2] Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing, Peoples R China
来源：
COMPUTERS & FLUIDS | 2018年 / 167卷
基金：
中国国家自然科学基金;
关键词：
Lattice Boltzmann method; Lattice spring model; Hemodynamics; Elastic vessel; Blockage; PARTICLES; INSTABILITY; DISPERSION;
D O I：
10.1016/j.compfluid.2018.03.040
中图分类号：
TP39 [计算机的应用];
学科分类号：
081203 ; 0835 ;
摘要：
Dynamic motion of two flexible fibers settling in an infinitely long fluid column at moderate Reynolds numbers is numerically simulated in a three-dimensional space by using a lattice-Boltzmann latticespring method In the simulations, rectangular and cylindrical flexible fibers are used. The fiber rigidity, density, shape, initial distance, and aspect ratio are varied at different levels and their effects on drafting, kissing, and tumbling (DKT) behavior are studied. It is demonstrated that the fiber rigidity has a profound impact on settling velocity, fluid structures, and DKT phenomenon. (C)2018 Elsevier Ltd. All rights reserved.
引用
收藏
页码：341 / 358
页数：18
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