ABSTRACT
The second step in aquifer test modeling is the selection of appropriate aquifer test mathematical modeling equations compatible with the previously defined conceptual model. There are two types of aquifer test mathematical modeling equations:
1. Analytical 2. Numerical
Analytical modeling equations are generally selected when a conceptual model consists of two or less layers and aquifer parameters are fairly uniform in space. Numerical modeling equations are generally selected when a conceptual model consists of more than two layers or the aquifer parameters are highly heterogeneous. It is of interest to note that analytical modeling equation solutions are often verified independently using numerical modeling equations and vice versa.
