Semi-analytical treatment of fracture/matrix flow in a dual-porosity simulator for unsaturated fractured rock masses

Conference · Wed Apr 01 00:00:00 EST 1992

OSTI ID:140771

Zimmerman, R W; Bodvarsson, G S

A semi-analytical dual-porosity simulator for unsaturated flow in fractured rock masses has been developed. Fluid flow between the fracture network and the matrix blocks is described by analytical expressions that have been derived from approximate solutions to the imbibition equation. These expressions have been programmed into the unsaturated flow simulator, TOUGH, as a source/sink term. Flow processes are then simulated using only fracture elements in the computational grid. The modified code is used to simulate flow along single fractures, and infiltration into pervasively fractured formations.

• Research Organization: Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 140771
• Report Number(s): LBL-31975; CONF-920430-98; ON: DE92017022; TRN: 92:034529
• Resource Relation: Conference: 3. international high level radioactive waste management (IHLRWM) conference, Las Vegas, NV (United States), 12-16 Apr 1992; Other Information: PBD: Apr 1992
• Country of Publication: United States
• Language: English

Related Subjects

05 NUCLEAR FUELS
58 GEOSCIENCES
FLUID FLOW
T CODES
TUFF
POROSITY
YUCCA MOUNTAIN
SITE CHARACTERIZATION
HIGH-LEVEL RADIOACTIVE WASTES
UNDERGROUND DISPOSAL
ROCKS
FLOW MODELS
ANALYTICAL SOLUTION
COMPUTERIZED SIMULATION
MATHEMATICAL MODELS
Yucca Mountain Project