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FIG. 9.4.4 Unconfined flow with rainfall.
FIG. 9.4.5 One-dimensional unconfined flow with rainfall. (Reprinted from A. Verrjuit, 1982, Theory of groundwater flow, Macmillan Pub. Co.)

3x 3y

Hence, the differential equation for the potential becomes

In terms of tf>, this equation reads

One-Dimensional Flow with Infiltration

For one-dimensional flow shown in Figure 9.4.5, Equation 9.4(21) becomes d2$ dx2

The general solution of this equation is

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