Figures & data
Table 1. Summary of the hydrological processes, flow characteristics and boundary conditions utilized in each test problem.
Figure 1. (a) Plan view of the computational domains for test problems 2 and 3. Computational grids of quadrant domain enlarged at 0 ≤ r ≤ 200 m for (b) dr = 5 m and dθ = 22.5°, (c) dr = 2.5 m and dθ = 22.5°, (d) dr = 1.25 m and dθ = 22.5°, (e) dr = 2.5 m and dθ = 11.25°, and (f) dr = 1.25 m and dθ = 5.625°.
Figure 2. Schematic description of groundwater pumping in a leaky aquifer for test problem 3.
Figure 3. Schematic of the aquifer with land subsidence due to groundwater pumping for Test problem 4.
Figure 4. Plan view of the model domains used in (a) test problem 5 (without pumping wells) and (b) test problem 6 (with four pumping wells).
Table 2. Withdrawal and recharge (m3/s) from each of the four wells through simulation time for test problem 6.
Figure 5. Schematic description of groundwater table near a surface reservoir for test problem 7 (Keller and Robinson Citation1959, Haushild and Kruse Citation1962).
Figure 6. Groundwater head h (m) vs spatial location x (m) for test problems 1a, 1b and 1c.
Table 3. NRMSE values for quadrant and pie wedge domains.
Figure 7. Drawdown versus time at the observation point that is located 55 m away from the well for quadrant and pie wedge domains for test problem 2.
Table 4. NRMSE values for quadrant domain for constant aspect ratio of mesh elements.
Table 5. Drawdown (m) in a leaky aquifer vs time at 100 m away from the pump, for different time steps for test problem 3.
Figure 8. Head (m) versus time (s) at the observation point located 100 m away from the well for test problem 4.
Table 6. NRMSE values for groundwater heads at observation point and total stream leakage for test problem 5.
Figure 9. Time variation of (a) stream leakage and (b) groundwater head at the observation point (in the middle of the stream reach) estimated by IWFM and MODFLOW for test problem 5.
Figure 10. Time variation of (a) groundwater head and (b) stream leakage at the observation point for test problem 6.
Figure 11. Computed dimensionless water table profile and experimental data for test problem 7.
