A study of multiphase flow in fractured porous media using a microscale lattice Boltzmann approach

Conference · Tue Feb 01 00:00:00 EST 1994

OSTI ID:10120589

Soll, W E; Eggert, K E; Grunau, D W ^[1]; Schafer-Perini, A L ^[2]

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1. Los Alamos National Lab., NM (United States)
2. EG and G Idaho, Inc., Idaho Falls, ID (United States)

The lattice Boltzmann technique has been shown to be an efficient and reliable approach to modeling single- and multi-fluid flow in porous media systems. The flexibility of this approach in discretizing the pore/solid space means it is particularly well suited to capturing fluid behavior, fluid-fluid interactions, and fluid-solid interactions at the scale of the individual pores. Such flexibility readily lends itself to studying processes occurring at physical interfaces, such as between a fracture and the surrounding porous matrix. Here we present pore-level simulations of fluid flow through a fracture embedded in an unsaturated matrix. Simulations are run on the massively parallel Connection Machine 5 (CM-5) using the two-fluid, two-dimensional lattice Boltzmann flow simulator developed at Los Alamos National Laboratory. We look at the effect of pressure gradients and initial matrix saturation on infiltration into the matrix and fluid flow along the fracture.

• Research Organization: Los Alamos National Lab., NM (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 10120589
• Report Number(s): LA-UR-94-418; CONF-940742-1; ON: DE94006164
• Resource Relation: Conference: Computational methods in water resources,Heidelberg (Germany),19-22 Jul 1994; Other Information: PBD: [1994]
• Country of Publication: United States
• Language: English

Related Subjects

58 GEOSCIENCES
54 ENVIRONMENTAL SCIENCES
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
MULTIPHASE FLOW
COMPUTER CALCULATIONS
FRACTURED RESERVOIRS
ROCK-FLUID INTERACTIONS
PARALLEL PROCESSING
BOLTZMANN STATISTICS
HYDROLOGY
GROUND WATER
LANL
580000
540210
990200
GEOSCIENCES
BASIC STUDIES
MATHEMATICS AND COMPUTERS