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Well Sink Radial flow at the corners of a mine pit (intersection of two line <br />sinks) are modeled using a point or well sink reduced by a factor correcting <br />for the actual portion of radial flow. The equation for radial flow (Equation <br />11) is based on the Dupuit-Forchheimer solution for steady state, confined <br />flow to a well. <br />The radius of influence of the well is computed as the mean of the confined <br />distances of influence for the adjacent line sinks. The percent of total well <br />flow is based on the geometry of the intersecting line sinks. <br />Verification and Validation A11 computer calculation routines were verified <br />by comparison of manual calculations and computer solution of the same <br />problem. A test problem was analyzed by both computer and different analytic <br />• methods. The similarity of~results from these two analytical methods showed <br />the model to be valid. <br />inputs and Outputs The parameters required as inputs to the model are listed <br />in Table 3 The parameters are listed in the order in which they are <br />input to the model. <br />Output from the model consists of tables of computed values for each aquifer <br />at each time step (See Model Results). In the table, each sink is listed with <br />computed flow to the sink, average distance of influence for unconfined <br />conditions, and average distance of influence for confined conditions. Total <br />flow from each aquifer at each time step is included. <br /> <br />4 <br />