A 3-dimensional H-adaptive algorithm for groundwater flow and contaminant transport

The simulation of contaminant transport through the subsurface is a very useful way to effectively design mitigation methods for cleanup and prevention of the deterioration of groundwater; The GWADAPT3 code is developed using the finite-element method and mesh adaptation to simulate groundwater flow and contaminant transport. The formulation is based on the equations for conservation of mass, Darcy's law for an anisotropic medium, and the time-dependent species transport equations. Petrov-Galerkin weighting of the advection terms provides numerical stability. An explicit time marching scheme is used to solve the transient equations. By utilizing unstructured adaptive meshing, concentration is accurately resolved; Benchmark cases were used to check the feasibility of GWADAPT3. The results of the test cases from GWADAPT3 were also compared with results from FEFLOW and FEHM; A simulation of the Yucca Mountain Repository site was made using GWADAPT3. The simulation was run on the SGI-02 and the SGI-Cray origin 2000 located at UNLV.

Name thesis:degree_name

Master of Science (MS)

Level thesis:degree_level

Thesis

Discipline thesis:degree_discipline

Mechanical Engineering

Grantor dc:publisher

University of Nevada, Las Vegas

Year

1999

Author dc:creator

• Li, Lan

Contributors dc:contributor

• Darrell Pepper

Statement dc:rights

• IN COPYRIGHT. For more information about this rights statement, please visit http://rightsstatements.org/vocab/InC/1.0/

Language dc:language

English

Identifier

https://oasis.library.unlv.edu/rtds/1040

OAI identifier oai:identifier

oai:oasis.library.unlv.edu:rtds-2039