A PERMEABILITY MODEL OF PACKED PARTICLES MATERIAL BASED ON 2-D FRACTAL GRADATION SPECTRUM

被引：1
|
作者：
Zuo, Fan [1 ]
Liu, Junqing [2 ]
Li, Meng [1 ]
Liu, Chao [1 ,2 ]
机构：
[1] Xian Univ Architecture & Technol, Sch Civil Engn, Xian, Peoples R China
[2] Xian Univ Architecture & Technol, Sch Sci, Xian, Peoples R China
来源：
THERMAL SCIENCE | 2021年 / 25卷 / 03期
基金：
中国国家自然科学基金;
关键词：
particle size distribution; permeability coefficient; packed particles material; KOZENY-CARMAN CONSTANT; SIZE DISTRIBUTION; POROUS-MEDIA; DENSITY;
D O I：
10.2298/TSCI191112153Z
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The permeability property of a packed particles material has been caught much attention, it depends upon its pore characteristics caused by the particle accumulation, but the current empirical formulas and the permeable theory could not reveal the effect of the particle accumulation thoroughly. In this paper, a theoretical formula is derived, and the fractal gradation spectrum is adopted to confirm the particle size distribution, furthermore, the pore feature is determined by the particle size and accumulation features, finally a permeability model of the packed particles material is established. In this model, the effect of particle size distribution on pore features is estimated more thoroughly than those in conventional models, and the calculated results are more accurate and verified experimentally.
引用
收藏
页码：2083 / 2091
页数：9
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