典型文献
An extended unresolved CFD-DEM coupling method for simulation of fluid and non-spherical particles
文献摘要：
This study develops an extended unresolved CFD-DEM coupling method for simulation of the fluid-solid flow with non-spherical particles.The limitation of fluid grid size is discussed,by simulating the settling of a cylinder in a Newtonian fluid based on the resolved and unresolved CFD-DEM coupling method.Then,the calculation of porosity and the fluid-particle relative velocity based on the particle shape enlarge-ment method for simulation of non-spherical particles is proposed.The availability of the particle shape enlargement method for the simulation of non-spherical particles with different sphericity is discussed in this work,by comparing it with the results from the equivalent diameter enlargement method.The lim-itation of the equivalent diameter enlargement method for non-spherical particles is revealed from the simulation results.Several typical cases are employed to elaborate and verify the extended unresolved CFD-DEM method based on particle shape enlargement method,by presenting a good consistency with the experimental results.It proves that the extended unresolved CFD-DEM method is suitable for differ-ent CFD grid size ratios,and consolidates that it is a universal calculation method for CFD-DEM coupling simulation.
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中图分类号：
作者姓名：
Liping He;Zhengxian Liu;Yongzhi Zhao
作者机构：
Department of Mechanics,School of Mechanical Engineering,Tianjin University,Tianjin 300350,China;Institute of Process Equipment,College of Energy Engineering,Zhejiang University,Hangzhou 310027,China
文献出处：
引用格式：
[1]Liping He;Zhengxian Liu;Yongzhi Zhao-.An extended unresolved CFD-DEM coupling method for simulation of fluid and non-spherical particles)[J].颗粒学报（英文版）,2022(09):1-12
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0.366
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