Simulation and verification of particle flow with an elastic collision by the immersed edge-based smoothed finite element method

被引:1
作者
Su, Jie [1 ]
Jiang, Chen [2 ]
Zhong, Xiang [1 ]
Zhou, Changjiang [1 ,3 ]
机构
[1] Hunan Univ, State Key Lab Adv Design & Manufacture Vehicle Bod, Changsha 410082, Peoples R China
[2] Cent South Univ, Sch Traf & Transportat Engn, Key Lab Traf Safety Track, Minist Educ, Changsha 410076, Peoples R China
[3] Shaanxi Fast Gear Co Ltd, Shanxi Key Lab Gear Transmiss, Xian 710119, Peoples R China
基金
中国国家自然科学基金;
关键词
Elastic particles; Flow characteristic; Particle collision; Smoothed finite element method; Experimental verification; DIRECT NUMERICAL-SIMULATION; FLUID-STRUCTURE INTERACTION; LARGE-DEFORMATION; INCOMPRESSIBLE FLOWS; BOUNDARY METHOD; SYSTEM; DYNAMICS; BODIES;
D O I
10.1016/j.apt.2023.104130
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
The immersed edge-based smoothed finite element method (IES-FEM) is proposed for the study of elastic collision particulate flow. Particle collision becomes more realistic by using the penalty function and the hyperelastic constitutive model. The effects of grid resolution and Reynolds numbers on particle terminal velocity and drag coefficient are discussed to verify the calculation accuracy and stability. Single-particle collisions with the bottom and side walls are analyzed and experimentally verified. Results show that the calculation error of IES-FEM is less than 0.6% when the fluid grid size is 0.5 times the particle mesh size and the time step is 10-4 s. Particle drag coefficient and flow characteristics agree well with the published models and experiment results. To demonstrate the capabilities of IES-FEM in complex elastic particle systems, the collision and rebound of multiple particles are determined, including the drafting-kis sing-tumbling of two circular particles; the chase, collision, and deformation of rectangular particles; and the repeated formation and separation of particle clusters. This work extends the application of IES-FEM in particle-resolved direct numerical simulation methods, which will provide an optional tool for future elastic blood cell flow and collision.& COPY; 2023 Published by Elsevier B.V. on behalf of The Society of Powder Technology Japan. All rights reserved.
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页数:19
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