Unsteady-state flow equations

Profile boundaries:

1. Analysis is based either on superposition principle (for piezometer)

2. Hantush's solution (for piezometer)

Laplace transform solution:

zp = LTp

3. Hantush's solution (for observation well))

Laplace transform solution:

4. Moench's solution (for piezometer and observation well).

5. Moench's solution (for piezometer and observation well) with skin-factor.

6. Moench's solution for pumping well with skin-factor.

7. Drawdown in piezometer (pumping well just tapping the aquifer):

8. Mishra's et al. Laplace transform solution for observation well

9. Mishra's et al. Laplace transform solution for piezometer

Lateral boundaries:

Methods of analysis and parameters being estimated

For solutions based on superposition principle:

Profile boundaries:

Lateral boundaries:

1) for isotropic aquifer parameters k and a are estimated;

2) for isotropic aquifer either for anisotropic aquifer at z = 0, where

3) for isotropic aquifer; for anisotropic aquifer estimated parameters are