The University of Texas at El Paso

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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
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Experiment -1Modeling Contamination Transport
Using Lab Experiment-S11 Ground Water Flow and
Well Abstraction Model
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Time155 pm
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Time155 pm
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Time156 pm
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Time203 pm
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Results
piezometer H measured H measured H predict SSQ
1 12 cm 12.65451 0.428388 19.68557 27.84394
2 10.5 cm 10.85928 0.129079 8.625042 12.12082
3 10 cm 9.959885 0.001609 5.938199 6.667279
4 9.5 cm 9.523217 0.000539 3.751357 4.602909
5 9.4 cm 9.513731 0.012935 3.373989 4.562295
6 9.4 cm 9.509735 0.012042 3.373989 4.545243
7 10.9 cm 9.51134 1.928375 11.13452 4.55209
8 9.6 cm 9.513731 0.007442 4.148726 4.562295
9 9.7 cm 9.523217 0.031252 4.566094 4.602909
10 9.5 cm 9.057324 0.195962 3.751357 2.820877
11 9 cm 8.6038 0.156975 2.064515 1.50313
12 8.3 cm 8.147772 0.023173 0.542936 0.592891
13 6.8 cm 6.748483 0.002654 0.58241 0.396012
14 4.9 cm 4.598022 0.091191 7.09241 7.727042
15 3.5 cm 3.857644 0.12791 16.50925 12.39134
16 2.5 cm 2.798069 0.088845 25.63557 20.97373
17 1.8 cm 2.349334 0.301768 33.21399 25.28525
18 2.9 cm 3.251574 0.123604 21.74504 17.02556
19 3.5 cm 3.602735 0.010554 16.50925 14.25095
ave 7.563158 3.674297 192.2442 172.4745
ave w/o 7 7.377778 2
length 99 cm
width 49 cm
height 10 cm
area 490 cm2
Qref 0.05 L/s
50 cm3/s
dh 1.5 cm
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dl 12.5 cm
hydraulic -0.8296 cm/s
conductivity -0.68 cm/s
delta X 3 cm
A 30 cm2
t for 1L 20.5 s
Qwell 2.926829 L/min
0.04878 L/s
48.78049 cm3/s
?XQ/4KA -1.7934
porosity 0.343088
K/?Xf 0.806013
est H 14 cm
time s min L dh
formula 1 153.6183 2.560304 59 11.43294
t(aL2)/(Kdh) t(aL2)/(Kdh)
formula 2
t(aLA)/Q t(aLA)/Q 203.3328 3.38888
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Results
Steady State 2D model
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Pizometers Actual Vs Predicted
Vy
Velocity (Vx direction)
Velocity (Vy direction)
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Contour Map shows Predicted Pizometers in
unconfined aquifer (sand tank) Experiment
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Experiment -2Adding a Barrier to the Modeling
Contamination Transport
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Results
length 99 cm
width 49 cm
height 10 cm
area 490 cm2
Qref 0.05 L/s
50 cm3/s
dh 1.5 cm
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dl 12.5 cm
hydraulic -0.53973 cm/s
conductivity -0.68 cm/s
delta X 3 cm
A 30 cm2
t for 1L 31.51 s
Qwell 1.904157 L/min
0.031736 L/s
31.73596 cm3/s
?XQ/4KA -1.16676
porosity 0.343088
K/?Xf 0.524382
est H 14 cm
piezometer H measured H measured H predict SSQ
1 12 cm 12.94763 0.897995 9 8.415564
2 11.4 cm 11.54553 0.02118 5.76 2.246602
3 10.8 cm 10.84601 0.002117 3.24 0.638944
4 10.5 cm 10.48657 0.00018 2.25 0.193518
5 10.5 cm 10.49425 3.31E-05 2.25 0.20033
6 10.5 cm 10.49704 8.75E-06 2.25 0.202838
7 10.6 cm 10.49447 0.011137 2.56 0.200527
8 10.6 cm 10.49213 0.011637 2.56 0.198435
9 10.6 cm 10.48369 0.013527 2.56 0.190993
10 10.4 cm 10.14922 0.062893 1.96 0.010516
11 10 cm 9.802775 0.038898 1 0.059483
12 9.8 cm 9.458538 0.116597 0.64 0.345896
13 9 cm 8.454165 0.297936 0 2.536061
14 8 cm 7.392958 0.368501 1 7.042172
15 6 cm 7.307806 1.710357 9 7.501357
16 4.2 cm -4.11971 69.21753 23.04
17 4.3 cm -2.3769 44.58104 22.09
18 5.4 cm 0.786116 21.28793 12.96
19 6.4 cm 2.760438 13.24642 6.76
ave 9 151.8859 110.88 29.98324
ave w/o 10.04667 4
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time s min L dh
formula 1 134.8115 2.246859 67.68309 17.1447
t(aL2)/(Kdh) t(aL2)/(Kdh)
formula 2
t(aLA)/Q 358.5338 5.975564
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Results
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Results
Pizometers Actual Vs Predicted
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Contour Map shows Predicted Pizometers in
unconfined aquifer with a Barrier around the well
Contamination Transport Direction