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A production well is located at coordinates (500m, 500m) in a confined aquifer 1000m wide and 1000m long. The transmissivity and the storativity of the aquifer are 1000 m2/day and 0.0001 respectively. The well is pumped for 10 days at 1000m3/day. Determine the response of the aquifer for 30 days since the beginning of pumping at an observation bore at coordinates (600m, 500m), and another at (700m, 500m).
Solution:
In WIDE, start a new model by selecting the [File | New] menu option.
Add the grid and aquifer property details by selecting the [Edit | Grid/Aquifer Properties...] menu option. In the Properties dialog add the following data for the two tabs [Note: Select the appropriate aquifer type prior to setting the Aquifer Properties. Certain properties are only enabled for specific aquifer types]:
Add a pumping well by right-clicking (ctrl click for MacOS) on the grid and entering the pumping bore details. Note: A pumping well cannot be positioned directly on a node. This will cause a numerical instability when calculating the node's drawdown. By default, WIDE will relocate the well by 0.1[L] north and east.
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