Applications of numerical methods to simulate the movement of contaminants in groundwater.
Environ Health Perspect
; 83: 97-115, 1989 Nov.
Article
en En
| MEDLINE
| ID: mdl-2695327
This paper reviews mathematical models and numerical methods that have been extensively used to simulate the movement of contaminants through the subsurface. The major emphasis is placed on the numerical methods of advection-dominated transport problems and inverse problems. Several mathematical models that are commonly used in field problems are listed. A variety of numerical solutions for three-dimensional models are introduced, including the multiple cell balance method that can be considered a variation of the finite element method. The multiple cell balance method is easy to understand and convenient for solving field problems. When the advection transport dominates the dispersion transport, two kinds of numerical difficulties, overshoot and numerical dispersion, are always involved in solving standard, finite difference methods and finite element methods. To overcome these numerical difficulties, various numerical techniques are developed, such as upstream weighting methods and moving point methods. A complete review of these methods is given and we also mention the problems of parameter identification, reliability analysis, and optimal-experiment design that are absolutely necessary for constructing a practical model.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Suelo
/
Movimientos del Agua
/
Contaminación del Agua
/
Modelos Teóricos
Límite:
Humans
Idioma:
En
Revista:
Environ Health Perspect
Año:
1989
Tipo del documento:
Article
Pais de publicación:
Estados Unidos