A study on the gray numerical model of two-dimensional groundwater pollution

Contaminant transport in underground system usually occurs in varied flow fields and in anisotropic and heterogenous media. Because the applicability of analytical solutions is extremely limited for such conditions, and the distribution and transport of pollutants in groundwater are controlled by physical chemistry and biology courses, which include advection, mechanical disperse, molecule spreading, adsorption, solve and suck, biodegradation function, and numerical techniques are essential for underground pollution modeling. Among the numerical techniques, the gray numerical method has become very popular and is recognized as a powerful numerical tool. The gray numerical method, particularly for pollution modeling, may be preferable to other methods. In this paper, gray numerical model is applied to simulate two-dimension groundwater pollution. The results indicate that this method provides the references for the forecast of pollutants and the management and evaluation of groundwater resources.