Porosity

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porosity

[pə′räs·əd·ē]
(physics)
Property of a solid which contains many minute channels or open spaces.
The fraction as a percent of the total volume occupied by these channels or spaces; for example, in petroleum engineering the ratio (expressed in percent) of the void space in a rock to the bulk volume of that rock.

Porosity

 

in geology, the aggregate of pores, joints, channels, and other cavities in a rock massif, regardless of their shape and dimensions. The porosity and jointing of rock and other such concepts are distinguished.

porosity

A ratio, usually expressed as a percentage, of the volume of voids in a material to the total volume of the material, including the voids. The voids permit gases or liquids to pass through the material.
References in periodicals archive ?
These two effects may counteract each other to some extent and may thereby cause the spherical pore linear slope to appear to fit the experimental results to higher porosities than would be warranted if the pores were only spherical at all porosities.
Adding, multiplying, or dividing the natural logarithm affects the upper and lower ends of the initial values of effective porosity and can shift the ranges of porosities up or down.
For the studied range of porosities and a suggested thermal conductivity of quartz, neither the arithmetic, Maxwell, nor the harmonic model can satisfactorily explain the observed thermal conductivity-porosity relationship in our data set (Fig.
Using ProCAST, the tooling engineer identified large shrink porosities in the casting.
Silica gels used for thermal insulation typically have porosities of 95 to 99 percent, he says.
Porosities in the primary carbonate reservoir objective, Huttenberg Formation, exceed 36% total porosity and range from 22% - 37%.