- Groundwater flow and contamination studies
- Hydraulic Fracturing and Reservoir Analysis
- Reservoir Engineering and Simulation Methods
- Drilling and Well Engineering
- Soil and Unsaturated Flow
- Nuclear and radioactivity studies
- Geothermal Energy Systems and Applications
- Graphite, nuclear technology, radiation studies
- CO2 Sequestration and Geologic Interactions
- Rock Mechanics and Modeling
- Hydrological Forecasting Using AI
- Nuclear reactor physics and engineering
- Geophysical Methods and Applications
- Nuclear Materials and Properties
- Seismic Imaging and Inversion Techniques
- Landfill Environmental Impact Studies
- Nuclear Engineering Thermal-Hydraulics
- Geotechnical and Geomechanical Engineering
- Fault Detection and Control Systems
- Granular flow and fluidized beds
- Heat and Mass Transfer in Porous Media
- Landslides and related hazards
- Matrix Theory and Algorithms
- Spacecraft and Cryogenic Technologies
- Heat Transfer and Optimization
Sandia National Laboratories
2004-2024
Sandia National Laboratories California
2012-2021
Lawrence Berkeley National Laboratory
1995
University of California, Berkeley
1995
This paper describes the applications of fractured continuum model to different enhanced geothermal systems reservoir conditions. The capability generate fracture characteristics expected in environments are demonstrated for single and multiple sets fractures. Fracture defined by strike, dip, spacing, aperture. demonstrates how can be extended represent continuous features, such as long fractures, conditions which density varies within depth intervals. Simulations heat transport using...
Disposal of commercial spent nuclear fuel in a geologic repository is studied. In situ heater experiments underground research laboratories provide realistic representation subsurface behavior under disposal conditions. This study describes process model development and modeling analysis for full-scale experiment opalinus clay host rock. The results thermal-hydrology simulation, solving coupled nonisothermal multiphase flow, comparison with experimental data are presented. closely match the data.
In high-level radioactive waste disposal, a heat-generating canister is generally encased with layer of bentonite-based buffer material acting as an engineered barrier to limit water percolation and radionuclide release. The low thermal conductivity bentonite (~0.5 W/m∙K) combined high loading package may result in surface temperature on the that can potentially impact structural integrity itself well surrounding material. We show here be effectively enhanced by embedding copper wires/meshes...
A CFD analysis was conducted comparing turbulent natural convection and conduction-only models used for heat fluid flow simulations in the drifts of Yucca Mountain Project. The model represents open spaces using effective air thermal conductivities. FLUENT code both with generation boundary condition at waste package constant temperature 5 meters into host rock formation. Comparisons were made contours drift profiles surfaces different engineered components two approaches. results show that...