Journal ArticleDOI
A Discussion About Hydraulic Permeability and Permeability
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TLDR
In this paper, an error in the unit of hydraulic permeability was identified and corrected by using the symbol k and the symbol K to represent mobility instead of the coefficient of permeability.Abstract:
The unit of permeability is Darcy, md, or unit of area. The symbol used to represent it is k, and the symbol K is used to represent mobility. Many references including some textbooks in soil mechanics contain confusion between these two terms, that is, hydraulic permeability K is used to refer to permeability k. In these books the term hydraulic permeability or coefficient of permeability is used to refer to mobility. Moreover, the symbols k and K are used in a contrary manner. Also, there is an error in the unit of hydraulic permeability. This work is a trial to clarify and correct this error.read more
Citations
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Journal ArticleDOI
Effects of vortices trapped in a dead end on resistance to pore-scale flow
TL;DR: In this article, the authors present an innovative method for calculating the total flow resistance of a pore-scale flow with dead ends, which involves two steps including theoretical calculation and numerical simulation.
Journal ArticleDOI
On the electrokinetic characterization of charged polymeric membranes by transversal streaming potential
TL;DR: It is shown that polymeric membranes can be affected by a transmembrane pressure application, which does not affect surface charge distribution of thepolymeric membranes, but it can strongly affect the membrane structure.
Journal ArticleDOI
Removal of Mn(II) from Acidic Wastewater on the Red Mud– Loess Mixture: Fixed–Bed Column Tests
TL;DR: In this paper , the purification effect of red mud-loess mixture (RM-L) as a reactive medium in a permeable reactive barrier (PRB) for groundwater contaminated by acidic wastewater (AW) containing Mn(II) was explored considering removal capacity and pH value, and the safety of MnII on RM-L after purification was evaluated.
Journal ArticleDOI
Onggi’s permeability to carbon dioxide accelerates kimchi fermentation
Soohwan Kim,David Hu +1 more
TL;DR: In this article, a mathematical model for carbon dioxide generation rate during fermentation using the onggi's gas permeability as a free parameter is presented, and the authors conclude that porous walls help the Onggi to ‘exhale’ carbon dioxide, lowering internal levels to those favored by lactic acid bacteria.
References
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Book
Soil Mechanics, Si Version
TL;DR: The Cisaillement Reference Record was created on 2004-09-07, modified on 2016-08-08 as discussed by the authors, and was used for the Mecanique des sols.
Journal ArticleDOI
On the use of the KozenyCarman equation to predict the hydraulic conductivity of soils
TL;DR: The saturated hydraulic conductivity of a soil can be predicted using empirical relationships, capillary models, statistical models, and hydraulic radius theories as mentioned in this paper, and a well-known relationship between...
Book
Elementary Fluid Mechanics
TL;DR: The Reynolds Transport Theorem and the Impulse-Momentum Principle as discussed by the authors have been used to describe the behavior of real and simulated real fluids. But they do not describe the dynamics of real fluid flow.
Journal ArticleDOI
Permeability of saturated sands, soils and clays
TL;DR: In this paper, it is shown that clays do not conform to the Kozeny theory in its simple form, but that it may be modified to give a satisfactory representation of the data available.