PRINCE is a software package which contains ten analytical solute transport and flow models, widely known as the Princeton Analytical Models. The three flow models simulate two-dimensional groundwater flow in a confined homogeneous, isotropic aquifer of finite, semi-finite and infinite lateral extent. The flow models include a two-dimensional anisotropic Theis solution for multiple injection and extraction wells, as well as the two-dimensional Hantush-Jacob solution for leaky, anisotropic aquifers.. They can be used for analysis of well spacing and capture zone problems with a simple treatment of recharge/barrier boundary conditions.

The seven solute transport models calculate plume concentrations and breakthrough curves in one-, two- and three-dimensional aquifers. They can be used to address problems in a uniform velocity field and can consider dispersion, linear equilibrium adsorption (retardation) and first-order decay. Continuous, slug, or time dependent point and areal sources can be simulated, including two-dimensional strip and Gaussian sources. A modified Wilson and Miller solution allows for injection of mass in multiple injection wells. They can be used for long-term health-based risk assessment for down-gradient receptors, study of plume advancement, attenuation and decay, and verification of numerical models.

PRINCE is a self contained package where all model selection, data input and output is done via an interactive, menu-driven, graphical user interface. The program includes extensive screen graphics and output capabilities, and many interfaces with other graphics packages including AutoCAD. It supports on screen display of breakthrough curves and overlays of base maps with concentration or head contours.

PRINCE is a proprietary program written in C. Its documentation includes a description of the theoretical background and limitations of the models, and a tutorial for the use of the models.

SYSTEM REQUIREMENTS

Intel 80i86 based computer with math coprocessor, 640 Kb RAM, DOS 3.1 or higher, EGA or VGA graphics.

Developers: M. Ungs and R.W. Cleary (Princeton Groundwater) and Waterloo Hydrogeologic Software.