Brief Information
- WELLS is a C code for multi-well variable-rate pumping test analysis based on analytical methods.
- WELLS computes drawdown in confined, unconfined and leaky aquifers through a variety of analytical solutions.
- WELLS considers fully or partially penetrating pumping and observation wells. It also includes wellbore storage capacity of pumping wells.
- WELLS can simulate variable-rate pumping tests where the variable rate is approximated either as piecewise linear or as step changes. It can also handle standard exponential and sinusoidal changes in pumping rates.
- WELLS utilizes the principle of superposition to account for transients in the pumping regime and to include multiple sources/sinks (e.g. pumping wells).
- WELLS combines the use of the principle of superposition and method of images to represent constant head or no flow boundaries.
- WELLS accounts for an exponential or linear temporal trend in simulated water levels to account for non-pumping influences (e.g. long-term aquifer recharge or discharge trend).
- WELLS is a unix-style code with command-line interface. It has been tested and applied using various operating systems (Microsoft Windows (32/64), Cygwin, Linux and Mac OS X).
- WELLS can be coupled with parameter estimation (model inversion) codes such as MADS, DAKOTA, UCODE and PEST to automate the calibration, uncertainty quantification, sensitivity analysis, etc. of model parameters.
Developers:
- Phoolendra Mishra -:- p k m i s h r a at l a n l dot g o v
- Dylan Harp -:- d h a r p at l a n l dot g o v
- Velimir V. Vesselinov (monty) -:- v v v at l a n l dot g o v (the code was originaly developed at the University of Mining & Geology, Sofia, Bulgaria in 1992)
Professional softwares/codes with similar capabilities are:
Groundwater is a renewable resource, to a point.
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