1. The University of Texas at El Paso Modeling Ground Water and Contamination Transport Using Lab Experiment-S11 Ground Water Flow and Well Abstraction By: Timothy Engle Abdusalam Agail

2. Experiment -1 Modeling Contamination Transport Using Lab Experiment-S11 Ground Water Flow and Well Abstraction Model

3. Time:1:55 pm

5. Time:1:56 pm

11. Time:2:03 pm

12. Results length99cm width49cm height10cm area490cm^2 Qref0.05L/s 50cm^3/s dh1.5cm #1&2 dl12.5cm hydraulic-0.8296cm/s conductivit y-0.68cm/s delta X3cm A30cm^2 t for 1L20.5s Qwell2.926829L/min 0.04878L/s 48.78049cm^3/s ΔXQ/4KA-1.7934 porosity0.343088 K/ΔXφ0.806013 est H14cm piezometerH measuredH predictSSQ 112cm12.654510.42838819.6855727.84394 210.5cm10.859280.1290798.62504212.12082 310cm9.9598850.0016095.9381996.667279 49.5cm9.5232170.0005393.7513574.602909 59.4cm9.5137310.0129353.3739894.562295 69.4cm9.5097350.0120423.3739894.545243 710.9cm9.511341.92837511.134524.55209 89.6cm9.5137310.0074424.1487264.562295 99.7cm9.5232170.0312524.5660944.602909 109.5cm9.0573240.1959623.7513572.820877 119cm8.60380.1569752.0645151.50313 128.3cm8.1477720.0231730.5429360.592891 136.8cm6.7484830.0026540.582410.396012 144.9cm4.5980220.0911917.092417.727042 153.5cm3.8576440.1279116.5092512.39134 162.5cm2.7980690.08884525.6355720.97373 171.8cm2.3493340.30176833.2139925.28525 182.9cm3.2515740.12360421.7450417.02556 193.5cm3.6027350.01055416.5092514.25095 ave7.5631583.674297192.2442172.4745 ave w/o 77.3777782 timesminLdh formula 1153.61832.5603045911.43294 t=(α*L^2)/(K*dh) formula 2 t=(α*L*A)/Q203.33283.38888

13. Results Steady State 2D model

14. Vy Velocity (Vx direction)Velocity (Vy direction) Pizometers Actual Vs Predicted

15. Contour Map shows Predicted Pizometers in unconfined aquifer (sand tank) Experiment Legend: Contamination spot Source Well Location (Output) Actual Time = 2.56 Minute Modeled Time (Equation-1) = 2.56 min Modeled Time (Equation-2) = 3.38 min

16. Experiment -2 Adding a Barrier to the Modeling Contamination Transport

34. Results length99cm width49cm height10cm area490cm^2 Qref0.05L/s 50cm^3/s dh1.5cm #1&2 dl12.5cm hydraulic-0.53973cm/s conductivity-0.68cm/s delta X3cm A30cm^2 t for 1L31.51s Qwell1.904157L/min 0.031736L/s 31.73596cm^3/s ΔXQ/4KA-1.16676 porosity0.343088 K/ΔXφ0.524382 est H14cm piezometerH measuredH predictSSQ 112cm12.947630.89799598.415564 211.4cm11.545530.021185.762.246602 310.8cm10.846010.0021173.240.638944 410.5cm10.486570.000182.250.193518 510.5cm10.494253.31E-052.250.20033 610.5cm10.497048.75E-062.250.202838 710.6cm10.494470.0111372.560.200527 810.6cm10.492130.0116372.560.198435 910.6cm10.483690.0135272.560.190993 1010.4cm10.149220.0628931.960.010516 1110cm9.8027750.03889810.059483 129.8cm9.4585380.1165970.640.345896 139cm8.4541650.29793602.536061 148cm7.3929580.36850117.042172 156cm7.3078061.71035797.501357 164.2cm-4.1197169.2175323.04 174.3cm-2.376944.5810422.09 185.4cm0.78611621.2879312.96 196.4cm2.76043813.246426.76 ave9151.8859110.8829.98324 ave w/o10.046674 16-19 timesminLdh formula 1134.81152.24685967.6830917.1447 t=(α*L^2)/(K*dh) formula 2 t=(α*L*A)/Q358.53385.975564

35. Results

36. Pizometers Actual Vs Predicted

37. Contour Map shows Predicted Pizometers in unconfined aquifer with a Barrier around the well Contamination Transport Direction Legend: Contamination spot Source Well Location (Output) Actual Time = 6 Minute Modeled Time (Equation-1) = 2.24 Min Modeled Time (Equation-2) = 5.97 Min