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Groundwater modeling in multilayer aquifers

Сумата се прибавя директно в кошницата

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Описание

List of Figures

1. Definition sketch for a multilayer aquifer system

' ■ 7

2. Definition sketch for vertical cross section of a

confined aquifer 8

3. Definition sketch for vertical cross section of a

two-layer aquifer system 9

4. Definition sketch for vertical cross section of a

two-layer semiconfined-unconfined aquifer combination 10

5. Definition sketch for aquitard leakage ......... 13

6. Aquifer domain, boundaries, and a typical

element 18

7. Definition sketch for a Cauchy-type

(head-dependent) boundary condition 20

8. Definition sketch for a typical regional aquifer . . 22

9. Idealization of a continuum by triangular

elements 27

10. A three-nodal triangular element 30

11. Flow of operations for the code ULAM.EXE ... 41

12. Idealization of a typical domain 52

13. Definition sketch for Problem 1 71

14. Finite-element idealization of the solution

domain (Problem 1) 71

15. Comparison of numerical and analytical results

(Problem 1) 73

16. Piezometric head distribution in the main

aquifer layer (time 480 sec) . 74

17. Piezometric head surface in'the main aquifer

layer (time 240 sec)

18. Piezometric head surface in the main aquifer

layer (time 480 sec)

19. Definition sketch for Problem 2 '

20. Finite-element idealization of solution domain

(Problem 2)

21. Comparison of numerical and analytical results

(Problem 2)

22. Piezometric head distribution at time 10 days

(Problem 2)

23. Piezometric head surface at time 10 days

(Problem 2)

24. Piezometric head distribution at time 30 days

(Problem 2) ...

25. Piezometric head surface at time 30 days

(Problem 2) ....

26. Finite-element idealization of Problem 3

27. Drawdown for five layers as a function of time .

28. Steady-state results for the five-layer problem . .

29. Definition sketch for Problem 4

30. Finite-element idealization of Problem 4

31. Comparison of drawdown at the well position . . .

32. Piezometric head distribution in the first aquifer

layer (Case 4A)

33. Piezometric head surface in the first aquifer

layer (Case 4A)

34. Piezometric head distribution in the second

aquifer layer (Case 4A)

35. Piezometric head surface in the second aquifer

layer (Case 4A)

36. Piezometric head distribution in the first aquifer

layer (Case 4B)

37. Piezometric head surface in the first aquifer

layer (Case 4B)

38. Piezometric head distribution in the second

aquifer layer (Case 4B)

39. Piezometric head surface in the second aquifer

layer (Case 4B) . , 95

Cl. Definition sketch for a semiconfined layer 122