THE EFFECTS OF MEDIUM THICKNESS ON THE ISLAND SIZE DISTRIBUTION IN IMMISCIBLE DISPLACEMENT FLOW IN POROUS MEDIA
作者:
D.G. KIRIAKIDIS,
G.H. NEALE,
期刊:
Chemical Engineering Communications
(Taylor Available online 1993)
卷期:
Volume 123,
issue 1
页码: 127-134
ISSN:0098-6445
年代: 1993
DOI:10.1080/00986449308936169
出版商: Taylor & Francis Group
关键词: Immiscible displacement;Invasion percolation;Island size.
数据来源: Taylor
摘要:
The invasion percolation algorithm is used to simulate two-fluid immiscible displacement of a wetting fluid by a non-wetting fluid in various porous media represented by two-dimensional and three-dimensional networks of interconnected capillaries. Trapping of the displaced fluid occurs, thereby creating isolated islands. The effects of the thickness of the porous medium on the island size distribution are studied for capillary displacements for the case in which buoyancy effects are negligible. It was found in a previous study that the number of islands of size s scales approximately as s~" in two-dimensional porous media, where a is a function of the fluid viscosity ratio. The present work reveals that there is a cross-over behavior between the two-dimensional and the three-dimensional problems.
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