A Study on Parameter Identification of Pore-Throat Network Model, Derivation of Conductivity Curve and on the Two-Phase Flow within the Dynamic Regime
Date Issued
2003
Date
2003
Author(s)
DOI
912211E002042
Abstract
The pore-throat network model is app- lied to simulate pc -s-k characteristic
curves of two-phase flow in porous medium. The results demonstrate the model’s
ability to reasonably mimic the hysteresis phenomena, quantitatively estimate the
non-wetting phase residuals after imbibition, and imitate the effect of residual
non-wetting phase and contact angle on conductivity. However, there are two
problems raised during the research. One is the size effect of the network model
caused by the trend in saturation related to the distance from the boundary. The
other is the amount of computation is formidable. The network model is evolved to a
new direction called the “ensemble model of unit pore-throats”. Preliminary study
results were encouraging. For the new model is free of size effect and the computation
time requirement is manageable. It will be presented and discussed in the final report.
Subjects
Porous medium
non-aqueous phase liquid (NAPL)
two phase flow
quasi-static
characteristic curves
hysteresis
non-wetting phase residuals
pore-throat network
displacement mechanism
inverse problem
Publisher
臺北市：國立臺灣大學土木工程學系暨研究所
Type
report
File(s)![Thumbnail Image]()
Loading...
Name
912211E002042.pdf
Size
486.78 KB
Format
Adobe PDF
Checksum
(MD5):9aed2f7b0e8484298f212ab867099d35