The permeability of virtual macroporous structures generated by sphere packing models: Comparison with analytical models

SCRIPTA MATERIALIA

卷:124

Article

Otaru, A. J.¹  Kennedy, A. R.¹ 

[1] Univ Nottingham, Fac Engn, Nottingham, England

关键词: Porous material;    Modelling;    Simulation;   

DOI  :  10.1016/j.scriptamat.2016.06.037

来源: Elsevier

【 摘 要 】

Realistic porous structures typical of those made by replication of packed beds of spherical particles have been produced by a novel modelling method. Fluid dynamics simulation of the permeability of these structures agrees well with experimental measurements and similar modelling of structures derived from X-ray tomographic images. By varying the model structures the bottleneck flow concept proposed by analytical models in the literature was substantiated, confirming the high-dependence of permeability on the size of the windows connecting the pores but also highlighting the need for accurate determination of the connectivity of the pores for these models to be accurate. (C) 2016 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

【 授权许可】

Free