scholarly journals Testing and benchmarking of a three-dimensional groundwater flow and solute transport model

1988 ◽  
Author(s):  
P.N. Sims ◽  
P.F. Andersen ◽  
C.R. Faust ◽  
D.E. Stephenson
2014 ◽  
Vol 2014 ◽  
pp. 1-8
Author(s):  
Xingwei Wang ◽  
Jiajun Chen ◽  
Hao Wang ◽  
Jianfei Liu

Due to the uneven distribution of pollutions and blur edge of pollutant area, there will exist uncertainty of source term shape in advective-diffusion equation model of contaminant transport. How to generalize those irregular source terms and deal with those uncertainties is very critical but rarely studied in previous research. In this study, the fate and transport of contaminant from rectangular and elliptic source geometry were simulated based on a three-dimensional analytical solute transport model, and the source geometry generalization guideline was developed by comparing the migration of contaminant. The result indicated that the variation of source area size had no effect on pollution plume migration when the plume migrated as far as five times of source side length. The migration of pollution plume became slower with the increase of aquifer thickness. The contaminant concentration was decreasing with scale factor rising, and the differences among various scale factors became smaller with the distance to field increasing.


Ground Water ◽  
1989 ◽  
Vol 27 (4) ◽  
pp. 509-516 ◽  
Author(s):  
Bhasker K. Rao ◽  
Deborah L. Hathaway

1990 ◽  
Author(s):  
C. Faust ◽  
P. Sims ◽  
C. Spalding ◽  
P. Andersen ◽  
D. Stephenson

2014 ◽  
Vol 2014 ◽  
pp. 1-13 ◽  
Author(s):  
Hund-Der Yeh ◽  
Chao-Chih Lin ◽  
Bo-Jei Yang

Simultaneous identification of the source location and release history in aquifers is complicated and time-consuming if the release of groundwater contaminant source varies in time. This paper presents an approach called SATSO-GWT to solve complicated source release problems which contain the unknowns of three location coordinates and several irregular release periods and concentrations. The SATSO-GWT combines with ordinal optimization algorithm (OOA), roulette wheel approach, and a source identification algorithm called SATS-GWT. The SATS-GWT was developed based on simulated annealing, tabu search, and three-dimensional groundwater flow and solute transport model MD2K-GWT. The OOA and roulette wheel method are utilized mainly to reduce the size of feasible solution domain and accelerate the identification of the source information. A hypothetic site with one contaminant source location and two release periods is designed to assess the applicability of the present approach. The results indicate that the performance of SATSO-GWT is superior to that of SATS-GWT. In addition, the present approach works very effectively in dealing with the cases which have different initial guesses of source location and measurement errors in the monitoring points as well as problems with large suspicious areas and several source release periods and concentrations.


Sign in / Sign up

Export Citation Format

Share Document