permeability coefficient


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Related to permeability coefficient: Permeability constant

permeability coefficient

[‚pər·mē·ə′bil·əd·ē ‚kō·i‚fish·ənt]
(fluid mechanics)
The rate of water flow in gallons per day through a cross section of 1 square foot under a unit hydraulic gradient, at the prevailing temperature or at 60°F (16°C). Also known as coefficient of permeability; hydraulic conductivity; Meinzer unit.
References in periodicals archive ?
ER = Drug permeability coefficient after enhancer treatment/ Drug permeability coefficient before enhancer treatment
The permeability coefficient and mechanical parameters are assumed to be constant.
A higher permeability coefficient was observed for pellitorine when administered as extract (2.
Concentration (umo1/L)###Apparent permeability coefficient (Papp, x 10 -6cm/s)
Figure 8 shows the change of the permeability coefficient of oil shale with temperature.
The permeation and permeability coefficients respectively are tabulated in table 8 and illustrated graphically in figure 13.
The rate of input from dermal exposure is equivalent to the product of the permeability coefficient for the SC ([K.
The permeability coefficient for mixture made with fraction D 19% is higher than the mixture made of fraction D 23%.
From the gas permeation measurements the diffusion coefficients D were determined and sorption coefficients S calculated from the corresponding D and permeability coefficient P as S = P/D [10].
Apparent permeability coefficient (Papp)and flux values were calculated and analysed by means of a one-way repeated analysis of variance (ANOVA) to determine if differences were significant (p less than 0.
The aquifer system's characteristics, meaning the permeability coefficient, hydraulic transmitivity, the slope or the hydraulic gradient and the underground water flow direction.
The permeability coefficient, K, was calculated from the PPS porosity (air permeability) and caliper data using the following relationship (18):