Modelling Fluid Flow in Saturated Porous Media and at Interfaces

Author(s):  
D.A. Nield

In this paper we obtain an analytical solution that describes the effect of seepage flow on the freezing and thawing of saturated porous media. This solution is obtained by using techniques from complex variable theory. Results are presented to show how fluid flow effects the shape and growth rates of frozen regions embedded in the porous media. The effect of a heat sink is included for both single and multiple frozen regions. Examples are presented to illustrate the effect of this ground water flow on the thawing of arctic permafrost with and without the presence of perma­frost protection devices.


Author(s):  
Abbas KHAYYER ◽  
Hitoshi GOTOH ◽  
Yuma SHIMIZU ◽  
Kohji GOTOH ◽  
Songdong SHAO

2017 ◽  
Vol 80 ◽  
pp. 24-37 ◽  
Author(s):  
Toan Duc Cao ◽  
Enrico Milanese ◽  
Ernst W. Remij ◽  
Paolo Rizzato ◽  
Joris J.C. Remmers ◽  
...  

1996 ◽  
Vol 463 ◽  
Author(s):  
David B. Pengra ◽  
Po-Zen Wong

ABSTRACTElectrokinetic phenomena in brine-saturated porous media, such as electroosmosis (fluid-flow induced by applied electric fields) and streaming current (the complementary process) depend on the density of ions adsorbed on the pore surface and the characteristic thickness of the diffuse space-charge layer λ. These, in turn, depend on brine chemistry, ambient temperature and possibly other parameters. We report on a series of measurements of natural rock and synthetic glass-bead samples: for one sample group, we varied the temperature over 0–50 ° C; for another, we changed the brine cation species. We find that the electrokinetic coefficients depend only weakly on temperature; this is shown to follow from the expected trends in λ, η, and σ. The chemistry dependence follows qualitatively but not quantitatively the predictions of the Debye-Hiickel approximation.


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