TY - JOUR
T1 - Coupled flow equations for water, electricity and ionic contaminants through clayey soils under hydraulic, electrical and chemical gradients
AU - Yeung, A. T.
PY - 1990
Y1 - 1990
N2 - The transport of water, electricity and ionic contaminants through a clay stratum, which is a clay-water-electrolyte system out of thermodynamic equilibrium is studied in this paper. An exact description of the transport processes on the phenomenological level by the formalism of non-equilibrium thermodynamics defines the problem clearly and gives a quantitative description of the phenomenological coefficients. The simultaneous flows of water, electricity and contaminants under the influences of hydraulic, electrical and chemical gradients are formulated, and the phenomenological coefficients are related to experimentally measurable parameters in soil mechanics. Special cases of the general coupled flow theory are compared with existing solutions describing related phenomena for consistency. These cases include: the diffusion potential, the advection dispersion equation, the van't Hoff equation, and osmosis and ultra-filtration. These comparisons indicate that the developed theory is general and incorporates all these flow phenomena as special cases.
AB - The transport of water, electricity and ionic contaminants through a clay stratum, which is a clay-water-electrolyte system out of thermodynamic equilibrium is studied in this paper. An exact description of the transport processes on the phenomenological level by the formalism of non-equilibrium thermodynamics defines the problem clearly and gives a quantitative description of the phenomenological coefficients. The simultaneous flows of water, electricity and contaminants under the influences of hydraulic, electrical and chemical gradients are formulated, and the phenomenological coefficients are related to experimentally measurable parameters in soil mechanics. Special cases of the general coupled flow theory are compared with existing solutions describing related phenomena for consistency. These cases include: the diffusion potential, the advection dispersion equation, the van't Hoff equation, and osmosis and ultra-filtration. These comparisons indicate that the developed theory is general and incorporates all these flow phenomena as special cases.
UR - http://www.scopus.com/inward/record.url?scp=0038553787&partnerID=8YFLogxK
U2 - 10.1515/jnet.1990.15.3.247
DO - 10.1515/jnet.1990.15.3.247
M3 - Article
AN - SCOPUS:0038553787
SN - 0340-0204
VL - 15
SP - 247
EP - 268
JO - Journal of Non-Equilibrium Thermodynamics
JF - Journal of Non-Equilibrium Thermodynamics
IS - 3
ER -