Premium
Experimental Research on Permeability of Granular Media
Author(s) -
ErHui Zhao
Publication year - 1989
Publication title -
groundwater
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.84
H-Index - 94
eISSN - 1745-6584
pISSN - 0017-467X
DOI - 10.1111/j.1745-6584.1989.tb01048.x
Subject(s) - permeability (electromagnetism) , hydraulic conductivity , granular material , porous medium , materials science , mechanics , geology , physics , chemistry , composite material , porosity , soil science , membrane , biochemistry , soil water
The coefficient of permeability or hydraulic conductivity is a basic parameter of a granular media. It is difficult to determine the coefficient of permeability because it depends on many factors. According to experiments and analysis, we think the permeability of a granular media results from the unified effect of an external factor—the hydraulic gradient, and internal factors—properties of the granular media itself and the fluid; therefore, the permeability of a granular media can be determined by a sieve analysis and physical characteristics of the fluid. Based on theoretical analysis and experiments, we advance a unified expression to calculate the coefficient of permeability of a granular media. The precision of the formula is up to practical requirements based on inspection of experimental data. The formula is