Percolation as a Basic Concept for Macroscopic Capillarity
Percolation as a Basic Concept for Macroscopic Capillarity
复制标题
渗透作为宏观毛细管现象的基本概念
DOI:
10.1007/s11242-009-9395-0
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发表时间:
2010
影响因子:
2.7
通讯作者:
Doster
中科院分区:
文献类型:
--
作者:
Hilfer;Doster
The concepts of relative permeability and capillary pressure are crucial for the accepted traditional theory of two phase flow in porous media. Recently, a theoretical approach was introduced that does not require these concepts as input (Hilfer, Physica A, 359:119–128, 2006a; Phys. Rev. E, 73:016307, 2006b). Instead it was based on the concept of hydraulic percolation of fluid phases. This paper presents the first numerical solutions of the coupled nonlinear partial differential equations introduced in Hilfer (Phys. Rev. E, 73:016307, 2006b). Approximate numerical results for saturation profiles in one spatial dimension have been calculated. Long time limits of dynamic time-dependent profiles are compared to stationary solutions of the traditional theory. The initial and boundary conditions are chosen to model the displacement processes that occur when a closed porous column containing two immiscible fluids of different density is raised from a horizontal to a vertical position in a gravitational field. The nature of the displacement process may change locally in space and time between drainage and imbibition. The theory gives local saturations for nonpercolating trapped fluids near the endpoint of the displacement.
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DOI:
--
发表时间:
2000
期刊:
影响因子:
--
作者:
H. Besserer;R. Hilfer
通讯作者:
R. Hilfer
DOI:
--
发表时间:
2000
期刊:
影响因子:
--
作者:
R. Hilfer;H. Besserer
通讯作者:
H. Besserer
DOI:
--
发表时间:
2009
期刊:
影响因子:
--
作者:
R. Hilfer
通讯作者:
R. Hilfer
DOI:
--
发表时间:
1992
期刊:
影响因子:
--
作者:
P. Zegeling;J. Blom
通讯作者:
J. Blom
DOI:
--
发表时间:
1994
期刊:
TOMS
影响因子:
--
作者:
J. Blom;P. Zegeling
通讯作者:
P. Zegeling