Analytical Solution for the Transient Response of Cylindrical Cavity in Unsaturated Porous Medium

2018 ◽  
pp. 355-359
Author(s):  
Wei-Hua Li ◽  
Feng-Cui Feng ◽  
Zhao Xu
Keyword(s):  
Porous Medium ◽  
Analytical Solution ◽  
Transient Response ◽  
Cylindrical Cavity ◽  
Unsaturated Porous Medium

scholarly journals An analytical solution for critical withdrawal of layered fluid through a line sink in a porous medium

1997 ◽  
Vol 39 (2) ◽  
pp. 271-279 ◽  
Author(s):  
H. Zhang ◽  
G. C. Hocking ◽  
D. A. Barry
Keyword(s):  
Porous Medium ◽  
Analytical Solution ◽  
Flow Rate ◽  
Close Agreement ◽  
Critical Flow ◽  
Hodograph Method ◽  
Critical Flow Rate ◽  
Line Sink ◽  
Surface Profiles ◽  
Layered Fluid

AbstractFluid withdrawn through a line sink from a layered fluid in a vertically confined porous medium is considered. A hodograph method is used to obtain the shape of the interface for a given sink position at the critical flow rate. The analytical solution is compared with a more general numerical solution developed in earlier work. It was found that the surface profiles obtained by the two methods are in close agreement. However, the present work has the advantage that it gives a fully explicit solution.

Measurement of two-fluid saturations in a fine to medium sand

1996 ◽  
Vol 33 (6) ◽  
pp. 1014-1017 ◽  
Author(s):  
C F Gravelle ◽  
M A Knight ◽  
R J Mitchell
Keyword(s):  
Experimental Study ◽  
Porous Medium ◽  
Porous Media ◽  
Key Words ◽  
Oil Content ◽  
Reliable Method ◽  
Medium Sand ◽  
Unsaturated Porous Medium ◽  
Phase Liquid ◽  
Two Fluid

The infiltration of a light nonaqueous phase liquid (LNAPL) into an unsaturated porous medium will result in varying amounts of water, LNAPL, and air within the soil voids. A simple and reliable method of determining the percent saturation of each fluid is needed to analyze laboratory infiltration experiments. This note reviews the available methodologies for determining the oil content in porous media and presents an experimental study of a simple and reliable method for determining water and oil contents in an unsaturated fine to medium sand. Key words: fluid saturations, oil content, gravimetric, extraction, assay.

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