Unconfined aquifer

• (a) Radial flow to a well

• (b) Section A-A in case of unconfined aquifer
• Fig. 15.4 An unconfined aquifer

Let us consider a case of radial flow to a single well (Fig. 15.4). The unconfined aquifer is homogeneous and isotropic. The hydraulic conductivity of the aquifer is K. The pumping rate (Q) of the aquifer is constant and the well diameter is infinitesimally small. The well is fully penetrated into the aquifer and hydraulic head in the aquifer prior to pumping is uniform throughout the aquifer.