Panel summary report
The objective of this report is to summarize the various modeling approaches that were used to simulate solute transport in a variably saturated emission. In particular, the technical strengths and weaknesses of each approach are discussed, and conclusions and recommendations for future studies are made. Five models are considered: (1) one-dimensional analytical and semianalytical solutions of the classical deterministic convection-dispersion equation (van Genuchten, Parker, and Kool, this report ); (2) one-dimensional simulation using a continuous-time Markov process (Knighton and Wagenet, this report); (3) one-dimensional simulation using the time domain method and the frequency domain method (Duffy and Al-Hassan, this report); (4) one-dimensional numerical approach that combines a solution of the classical deterministic convection-dispersion equation with a chemical equilibrium speciation model (Cederberg, this report); and (5) three-dimensional numerical solution of the classical deterministic convection-dispersion equation (Huyakorn, Jones, Parker, Wadsworth, and White, this report). As part of the discussion, the input data and modeling results are summarized. The models were used in a data analysis mode, as opposed to a predictive mode. Thus, the following discussion will concentrate on the data analysis aspects of model use. Also, all the approaches were similar in that they were based on a convection-dispersion model of solute transport. Each discussion addresses the modeling approaches in the order listed above.
- Research Organization:
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Texas Univ., El Paso, TX (United States). Dept. of Civil Engineering; Nuclear Regulatory Commission, Washington, DC (United States). Div. of Waste Management; New Mexico Institute of Mining and Technology, Socorro
- OSTI ID:
- 60195
- Report Number(s):
- NUREG/CR-4615-Vol.2; LA-10730-MS-Vol.2; CONF-8606304-Vol.2; ON: TI87009181
- Resource Relation:
- Other Information: PBD: Apr 1987; Related Information: Is Part Of Modeling study of solute transport in the unsaturated zone: workshop proceedings; Springer, E.P.; Fuentes, H.R. (eds.); PB: 174-199 p.
- Country of Publication:
- United States
- Language:
- English
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