Research progress of fluid-solid coupling model based on CFD-DEM coupling

被引：0
|
作者：
Cai G. [1 ,2 ]
Diao X. [2 ]
Yang R. [2 ]
Wang B. [2 ]
Gao S. [2 ]
Liu T. [2 ]
机构：
[1] Key Lab of Urban Underground Engineering, Beijing Jiaotong University, Ministry of Education, Beijing
[2] School of Civil Engineering, Beijing Jiaotong University, Beijing
来源：
Harbin Gongye Daxue Xuebao/Journal of Harbin Institute of Technology | 2024年 / 56卷 / 01期
关键词：
CFD-DEM; fluid modeling; fluid-solid coupling; fluid-solid interaction; particle modeling;
D O I：
10.11918/202309001
中图分类号：
学科分类号：
摘要：
With the gradual deepening of the study of seepage erosion in soil, the research methods of soil particle loss and deformation and failure mechanism show the characteristics of multi-scale. The computational fluid dynamics-discrete element coupling method (CFD-DEM) provides an effective method to study the macroscopic mechanical characteristics of soil on the microscale, considering the influence of fluid-solid interaction. Regarding the current application status of CFD-DEM coupling method in geotechnical engineering, this paper systematically summarizes the advantages and disadvantages of existing fluid-solid coupling calculation methods, focusing on the modeling strategies of CFD-DEM coupling method. These strategies include solid particle shape modeling and interparticle contact models, control equations and parameter calculation methods for the fluid phase, as well as CFD-DEM coupling calculation. Furthermore, the paper conducts an in-depth exploration of related issues and concludes by proposing future development directions for the CFD-DEM coupling method. © 2024 Harbin Institute of Technology. All rights reserved.
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页码：17 / 32
页数：15
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