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פותח על ידי קלירמאש פתרונות בע"מ -
Effect of particle size distribution on the effective dielectric permittivity of saturated granular media
Year:
2001
Source of publication :
Water Resources Research
Authors :
פרידמן, שמואל
;
.
Volume :
37
Co-Authors:
Robinson, D.A., Dept. of Environ. Phys. of Irrigat., Inst. of Soil, Water/Environ. Sci., Volcani Center, Bet Dagan 50-250, Israel
Friedman, S.P., Dept. of Environ. Phys. of Irrigat., Inst. of Soil, Water/Environ. Sci., Volcani Center, Bet Dagan 50-250, Israel
Facilitators :
From page:
33
To page:
40
(
Total pages:
8
)
Abstract:
The effective permittivity of an unconsolidated porous material is shown to be not only a function of the permittivity of the individual components but also of the distribution of particle sizes present. Increasing width of particle size distribution for glass spheres and sieved quartz sand is demonstrated to reduce the effective permittivity of a mixture compared to the effective permittivity of the corresponding monosize material. The results are shown to lie between predictions made using the Maxwell-Garnett [1904] formula for monosize spheres and a self-similar model [Sen et al., 198l] and can be predicted by a multiple Maxwell-Garnett-based mixing model. The results demonstrate that the degree of sorting of a material will directly influence the effective permittivity of the mixture. This is beyond the effect of the change in permittivity caused by the significant change in porosity resulting from the mixing of different particle sizes.
Note:
Related Files :
dielectric property
granular medium
particle size
Particle size distribution
permeability
Permittivity
size distribution
עוד תגיות
תוכן קשור
More details
DOI :
10.1029/2000WR900227
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
22848
Last updated date:
02/03/2022 17:27
Creation date:
16/04/2018 23:54
You may also be interested in
Scientific Publication
Effect of particle size distribution on the effective dielectric permittivity of saturated granular media
37
Robinson, D.A., Dept. of Environ. Phys. of Irrigat., Inst. of Soil, Water/Environ. Sci., Volcani Center, Bet Dagan 50-250, Israel
Friedman, S.P., Dept. of Environ. Phys. of Irrigat., Inst. of Soil, Water/Environ. Sci., Volcani Center, Bet Dagan 50-250, Israel
Effect of particle size distribution on the effective dielectric permittivity of saturated granular media
The effective permittivity of an unconsolidated porous material is shown to be not only a function of the permittivity of the individual components but also of the distribution of particle sizes present. Increasing width of particle size distribution for glass spheres and sieved quartz sand is demonstrated to reduce the effective permittivity of a mixture compared to the effective permittivity of the corresponding monosize material. The results are shown to lie between predictions made using the Maxwell-Garnett [1904] formula for monosize spheres and a self-similar model [Sen et al., 198l] and can be predicted by a multiple Maxwell-Garnett-based mixing model. The results demonstrate that the degree of sorting of a material will directly influence the effective permittivity of the mixture. This is beyond the effect of the change in permittivity caused by the significant change in porosity resulting from the mixing of different particle sizes.
Scientific Publication
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