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
Experiment -1 Modeling Contamination Transport Using Lab Experiment-S11 Ground Water Flow and Well Abstraction Model
Time:1:55 pm
Time:1:56 pm
Time:2:03 pm
Results length99cm width49cm height10cm area490cm^2 Qref0.05L/s 50cm^3/s dh1.5cm #1&2 dl12.5cm hydraulic cm/s conductivit y-0.68cm/s delta X3cm A30cm^2 t for 1L20.5s Qwell L/min L/s cm^3/s ΔXQ/4KA porosity K/ΔXφ est H14cm piezometerH measuredH predictSSQ 112cm cm cm cm cm cm cm cm cm cm cm cm cm cm cm cm cm cm cm ave ave w/o timesminLdh formula t=(α*L^2)/(K*dh) formula 2 t=(α*L*A)/Q
Results Steady State 2D model
Vy Velocity (Vx direction)Velocity (Vy direction) Pizometers Actual Vs Predicted
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
Experiment -2 Adding a Barrier to the Modeling Contamination Transport
Results length99cm width49cm height10cm area490cm^2 Qref0.05L/s 50cm^3/s dh1.5cm #1&2 dl12.5cm hydraulic cm/s conductivity-0.68cm/s delta X3cm A30cm^2 t for 1L31.51s Qwell L/min L/s cm^3/s ΔXQ/4KA porosity K/ΔXφ est H14cm piezometerH measuredH predictSSQ 112cm cm cm cm cm E cm E cm cm cm cm cm cm cm cm cm cm cm cm cm ave ave w/o timesminLdh formula t=(α*L^2)/(K*dh) formula 2 t=(α*L*A)/Q
Results
Pizometers Actual Vs Predicted
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