The analysis of the radial flow of water to a well was originally proposed by Dupuit’s theory.

By pumping test method, the value of storage coefficient ranges was found to be in between 0.00005 to 0.005.

Based on the assumption proposed by Dupuit’s theory, the velocity of flow is proportional to the tangent of the hydraulic agent instead of its sine.

K/A is known as the specific yield or specific capacity of an open well, in cubic meter per hour per square meter of the area through which water percolates.

As the velocity of water is larger at the base, the width of base widens up and its diameter increases.

A partially penetrating artesian well is the one in which the well screen does not penetrate to the full depth of the confined aquifer. Such wells extend only partly through the water bearing stratum.

The parabolic depression formed when water is pumped from the aquifer through well can be called as cone of depression or the drawdown surface.

Pumping-out test is the frequently used field method, as it involves discharging water from the ground.

Since the flow of water is not horizontal near wall and the flow no longer remains laminar. Thus, Darcy’s law equation is not valid near the well face.

If the well is open, radial flow takes place all around the well and there is no flow from the bottom of the well.