Application of a Method for Comparing One-Dimensional and Two-Dimensional Models of a Ground-Water Flow System.

摘要

To evaluate the inability of a one-dimensional ground-water model to interact continuously with surrounding hydraulic head gradients,simulations using one-dimensional and two-dimensional ground-water flow models were compared. This approach used two types of models:flow-conserving one-and-two dimensional models,and one-dimensional and two-dimensional models designed to yield two-dimensional solutions. The hydraulic conductivities of controlling features were varied and model comparison was based on the travel times of marker particles. The solutions within each of the two model types compare reasonably well,but a three-dimensional solution is required to quantify the comparison. (ERA citation 04:024722)