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Simulation of Unsaturated Flow in Complex Fractures Using Smoothed Particle Hydrodynamics

^a Pacific Northwest National Lab., P.O. Box 999/MS K1-85, Richland, WA 99352
^b Idaho National Lab., P.O. Box 1625, MS 2025, Idaho Falls, ID 83415-2025

View larger version (18K): [in a new window]   Fig. 1. The weighting function W.

View larger version (12K): [in a new window]   Fig. 2. The interaction force Fij acting between particles i and j.

View larger version (27K): [in a new window]   Fig. 3. Gravity-free oscillation of a fluid sphere initially deformed into an oblate shape. First row is a side view and second row is a top view.

View larger version (14K): [in a new window]   Fig. 4. Gravity-free oscillations of a fluid sphere initially deformed into a prolate shape. First row is a side view and second row is a top view.

View larger version (16K): [in a new window]   Fig. 5. Transient velocity profiles for flow between two parallel plates.

View larger version (61K): [in a new window]   Fig. 6. Fracture aperture field.

View larger version (31K): [in a new window]   Fig. 7. Sketch of a three-dimensional fracture. Fluid is injected along one edge of the fracture (at x = 0). Gravity acts in the x direction.

View larger version (36K): [in a new window]   Fig. 8. Injection of a nonwetting (light particles) fluid into a fracture. g = 0.01. The X-Z cross-section and the X-Y top view are shown at three different times. The dark particles are immobile particles modeling the walls of the fracture.

View larger version (32K): [in a new window]   Fig. 9. Injection of a nonwetting (light particles) fluid into a fracture. g = 0.0001. The X-Z cross-section and the X-Y top view are shown at three different times. The dark particles are immobile particles modeling the walls of the fracture.

View larger version (35K): [in a new window]   Fig. 10. Injection of a wetting (light particles) fluid into a fracture. g = 0.01. The X-Z cross-section and the X-Y top view are shown at three different times. The dark particles are immobile particles modeling the walls of the fracture.

View larger version (35K): [in a new window]   Fig. 11. Injection of a wetting (light particles) fluid into a fracture. g = 0.001. The X-Z cross-section and the X-Y top view are shown at three different times. The dark particles are immobile particles modeling the walls of the fracture.