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Advanced aquifer test software for solving analytical and numerical problems by direct and inverse methods.

 CONCEPTUAL SCHEMES AND SOLUTIONS
    
1. Non-leaky confined aquifer  

Available conceptual schemes:
1.  Infinite aquifer (Theiss method) 
2. Semiinfinite aquifer: recharge boundary
3. Semiinfinite aquifer: non-flow boundary
4. Strip aquifer: recharge boundary                       
5. Strip aquifer: non-flow boundary                              
6. Strip aquifer: one recharge and one non-flow boundar.

Solutions:
1. Theiss method;
2. Moenchs solution for drawdown in the fully penetrating observation well in confined aquifer; the solution takes into account storage capacity of the pumping well, storage capacity of the observation well and skin effect of the pumping well;
3. Moenchs solution for drawdown in the pumping well in confined aquifer; the solution takes into account storage capacity and skin effect of the pumping well;
4. Popadopulos-Coopers solution for drawdown in the fully penetrating  observation  well in confined aquifer;  storage capacity of the pumping well is taken into account ;
5. Popadopulos-Coopers solution for drawdown in the pumping well in confined aquifer; storage capacity of the pumping well is taken into account;
6. Solutions based on Greens function for strip aquifers.

Typical scheme


 

2. Point source in  confined profile anisotropic aquifer

Available conceptual schemes:

1. Aquifer if infinite lateral extent and thickness;
2. Semiinfinite aquifer: Recharge boundary;
3. Aquifer with one lateral or profile boundary: Non-flow boundary;
4. Strip aquifer: Recharge boundary;
5. Areally (strip) or vertically bounded aquifer: Non-flow boundaries;
6. Strip aquifer: one recharge and one non-flow boundary.

Solutions:
1. Solutions for drawdown based on complementary error function.

Typical scheme

3. Linear source in confined aquifer anisotropic on the vertical plane

Available conceptual schemes:
1. Aquifer of infinite lateral extent and thickness;
2. Semiinfinite aquifer: recharge boundary ;
3. Aquifer with one lateral or profile boundary: non-flow boundary;
4. Strip aquifer: recharge boundary;
5. Areally (strip) or vertically bounded aquifer: non-flow boundaries;
6. Strip aquifer: one recharge and one non-flow boundary.

Solutions:
1. Solution for average drawdown in the observation well;
2. Solution for drawdown in piezometer;
3. Hantushs solution (for piezometer and for average drawdown in the observation well);
4. Moenchs solution (for piezometer and for average drawdown in the observation well);
5. Moenchs solution (for piezometer and for average drawdown in the observation well) with account for storage capacity of both the pumping well and piezometer, shape factor of the piezometer and the skin effect in the pumping well;
6. Moenchs solution for drawdown in the pumping well with account for its storage capacity and skin effect.

Typical scheme

4. Unconfined aquifer

Available conceptual schemes:
1. Infinite aquifer;
2. Semiinfinite aquifer: recharge boundary;
3. Semiinfinite aquifer: non-flow boundary;
4. Strip aquifer: recharge boundary;
5. Strip aquifer: non-flow boundary;
6. Strip aquifer: one recharge and one non-flow boundary.

Solutions:
1. Neumans solution for average drawdown in observation well and drawdown in piezometer in anisotropic aquifer; the pumping well as well as the observation well being fully penetrating or partially penetrating;
2. Boultons solution for average drawdown and water table drawdown in fully penetrating observation well in isotropic aquifer;
3. Moenchs solution for average drawdown in observation well and drawdown in piezometer in anisotropic aquifer; pumping and observation wells being fully penetrating or partially penetrating;
4. Moenchs solution for average drawdown in observation well and drawdown in piezometer in anisotropic aquifer; pumping and penetrating wells being fully penetrating or partially penetrating;with account for pumping well and piezometer storage capacity, skin effect in the pumping well and shape factor of the piezometer;
5. Moenchs solution for drawdown in fully penetrating or partially penetrating pumping well in anisotropic aquifer with account for pumping well storage capacity and skin effect;
6. Theiss solution for water table drawdown in fully penetrating well in isotropic aquifer;
7. Hantushs solution for water table drawdown in fully penetrating well in isotropic leaky aquifer.

Typical scheme

5. Leaky aquifer system

LEAKY AQUIFER WITH CONSTANT WATER HEAD
Available conceptual schemes:
1. Infinite aquifer;
2. Semiinfinite aquifer: recharge boundary;
3. Semiinfinite aquifer: non-flow boundary;
4. Strip aquifer: recharge boundary;
5. Strip aquifer: non-flow boundary;
6. Strip aquifer: one recharge and one non-flow boundary.

Solutions:
1. Solution based on leaky aquifer function;
2. Solution for drawdown in the fully penetrating observation well in leaky aquifer with account for the pumping well storage capacity;
3. Solution for water level drawdown in the pumping well in leaky aquifer with allowance for the pumping well storage capacity;.
4. Solution based on Greens functions for strip aquifers.

Typical scheme

LEAKY AQUIFER SYSTEM WITH ALTERNATING HYDRAULIC HEAD IN THE ADJACENT AQUIFER

Solutions:
1. Solution for drawdown in the main aquifer;
2. Solution for drawdown in the adjacent (un-pumped) aquifer.

LEAKY AQUIFER SYSTEM WITH ACCOUNT FOR AQUITARD STORAGE

Solutions:
1. Solution for drawdown in the main aquifer, water level in the adjacent aquifer being constant or alternating during the test;
2. Solution for drawdown in the adjacent (un-pumped) aquifer;
3. Solution for drawdown in the aquitard, water level in the adjacent aquifer being constant or alternating during the test.
.

PROFILE ANISOTROPIC AQUIFER WITHIN LEAKY AQUIFER SYSTEM

Solutions:
1. Hantushs solutions for drawdown in the partially penetrating well in profile anisotropic aquifer.

6. Two-layer aquifer system (unconfined aquitard above the confined aquifer)

Solutions:
1. Mironenkos solution for drawdown in the confined aquifer.

Typical scheme

7. Arealy heterogeneous aquifer

Solutions:
1. Maksimovs solution for drawdowns in the main and neighboring aquifers;
2. Fenskes solution for drawdowns in the main and neighboring aquifers.

Typical scheme

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8. Pumping near river

Solutions:
1. Shestakovs solutions for drawdown in confined aquifer;
2. Hantushs solutions for drawdown in unconfined aquifer.

Typical scheme

9. Multi-layer aquifer systems (two- or three-layer)

Solutions:
1. Set of solutions for various boundary conditions on top and bottom of the multi-layer aquifer system.).

Typical scheme

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10. Constant-drawdown (flowing well) test 

Available conceptual schemes:
1. Confined non-leaky aquifer;
2. Leaky aquifer.

Solutions:
1. Solution based on special function A(u, b) for drawdown in confined aquifer;
2. Sternbergs approximative solution for drawdown in confined aquifer;
3. Solution based on special function Z(u, b1, b2) for drawdown in confined leaky aquifer;
4. Sternbergs approximative solution for drawdown in confined leaky aquifer.

Typical scheme

11. Slug tests  

Available conceptual schemes:
1. Confined aquifer;
2. Unconfined aquifer.

Solutions:
1. Coopers solution for instantaneous change of initial water level in fully penetrating well in confined aquifer;
2. Pickings solution for non-instantaneous change of initial water level in fully penetrating well in confined aquifer;
3. Bouwer-Rices solution for slug test in partially penetrating well in unconfined aquifer;
4. Hvorslev s solutions for drawdown in confined or unconfined aquifer with account for shape factor of the well.

Typical scheme

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Literature

 

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ACTUAL VERSION 7.2
Mar 15, 2013.

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