Complex Variable Techniques
In this chapter the complex variable method for the solution of two-dimensional groundwater flow problems will be examined. It will be shown that this method facilitates the solution, in a rigorous way, of the general problem for regions bounded by fixed potential lines and stream lines. Also, many important problems involving a free surface or an interface between two immiscible fluids of different density can be solved by this method. It is in its ability to solve these latter problems that the power of the complex variable method is best illustrated.
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