Investigating the Direction of Groundwater Flow, Drawdown and Over-Pumping in a Confined Aquifer

Abstract

The objective of this paper is to investigate the direction of groundwater flow, factors affecting drawdown and the effects of over-pumping in a confined aquifer using appropriate differential equations for steady and unsteady states. The results showed that groundwater flow from a region of higher elevation to a lower elevation, pumping time and distance from the well affect drawdown and when water is pumped faster than it is recharged, the water in the well dries up. The numerical methods used are efficient for all differential equations of real-life problems.

Keywords

• Drawdown; Groundwater flow; Finite Difference methods; Alternating Direction implicit; Crank Nicolson method