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Water Behavior in Layered Porous Media with Discrete Flow Channels: Results of a Large-Scale Experiment

^a Southwest Research Institute, San Antonio, TX 78238-5166
^b Idaho National Laboratory, Idaho Falls, ID 83415-2211

View larger version (22K): [in this window] [in a new window]   FIG. 1. Cartoon of the experimental domain.

View larger version (16K): [in this window] [in a new window]   FIG. 2. A top view of the random correlated tube pattern. The discrete flow-channel layer interfaces are sloped downward from the left to the right.

View larger version (104K): [in this window] [in a new window]   FIG. 3. Stainless tubes inserted through metal template to create a simulated discrete flow-channel layer.

View larger version (89K): [in this window] [in a new window]   FIG. 4. A row of pressure probes being placed at an elevation of 60 cm from the bottom of the cell. The brass connectors on the left side of the cell are for additional pressure probes at higher elevations.

View larger version (22K): [in this window] [in a new window]   FIG. 5. Locations of the pressure probes: (A) two-dimensional side view and (B) two-dimensional end view.

View larger version (32K): [in this window] [in a new window]   FIG. 6. Results of water arrival for the 50 mL min–1 infiltration rate at sensor locations for times 1, 10, 50, 100, 150, and 167 h of experimental time. Light color (blue) indicates water arrival, and dark color (black) indicates no water arrival.

View larger version (33K): [in this window] [in a new window]   FIG. 7. Results of water arrival for the 150 mL min–1 infiltration rate at sensor locations for times 1, 10, 50, 100, 150, and 200 h of experimental time. Light color (blue) indicates water arrival, and dark color (black) indicates no water arrival.

View larger version (24K): [in this window] [in a new window]   FIG. 8. Planar positions of the probes immediately above (A) and immediately below (B) the discrete flow-channel layer.

View larger version (17K): [in this window] [in a new window]   FIG. 9. Measured water pressure head at probes 34 and 55 for the 50 mL min–1 (A) and 150 mL min–1 (B) experiments.

View larger version (18K): [in this window] [in a new window]   FIG. 10. Measured water pressure head at probes 35 and 56 for the 50 mL min–1 (A) and 150 mL min–1 (B) experiments.

View larger version (14K): [in this window] [in a new window]   FIG. 11. Measured water pressure head at probe 57 for the 50 mL min–1 (A) and 150 mL min–1 (B) experiments.

View larger version (20K): [in this window] [in a new window]   FIG. 12. Measured water pressure head at probes 32 and 54 for the 50 mL min–1 (A) and 150 mL min–1 (B) experiments.

View larger version (14K): [in this window] [in a new window]   FIG. 13. Measured water pressure head at probe 60 for the 50 mL min–1 (A) and 150 mL min–1 (B) experiments.

View larger version (15K): [in this window] [in a new window]   FIG. 14. Measured water pressure head at probe 64 for the 50 mL min–1 (A) and 150 mL min–1 (B) experiments.

View larger version (18K): [in this window] [in a new window]   FIG. 15. Measured water pressure head at probe 69 for the 50 mL min–1 (A) and 150 mL min–1 (B) experiments.