Groundwater modeling: Application of a multiphase fluid flow model as a decision-making tool for assessing and remediating installation restoration program sites. Master's thesis

Technical Report · Wed Sep 01 04:00:00 EDT 1993

OSTI ID:5710835

Scott, D J

This research examined a two-dimensional numerical model, VALOR, which can simulate multiphase fluid flow in soils and groundwater, and evaluated the applicability of the model as a decision-making tool for assessing and remediating IRP sites. Model sensitivity analyses were conducted to study the influence of grid sizes, soil types, and organic release rates on the simulated migration of both light and dense non-aqueous phase liquids (NAPLs). The VALOR model was applied to a case study of a JP-4 release at Wright-Patterson AFB, Ohio. The finer grid sizes provide the most accurate definition of NAPL distribution. The soil type and release rate sensitivity analyses demonstrate that NAPL migrates quicker through coarse sands than fine sand and clay. The light NAPL ponds at the water table and spreads laterally. The dense NAPL migrates through the subsurface and ponds at the aquifer bottom. The fast organic release simulations predict wider vertical pathways of migration. The slow organic release simulations predict higher light NAPL saturation at the water table. The case study indicates that within limits, VALOR may be useful for assessing NAPL distribution, estimating contaminated soil volumes, and evaluating remediation alternatives.... Groundwater modeling, Non-aqueous Phase Liquids: NAPL, Multiphase fluid flow model, Installation Restoration Program, IRP.

• Research Organization: Air Force Inst. of Tech., Wright-Patterson AFB, OH (United States). School of Engineering
• OSTI ID: 5710835
• Report Number(s): AD-A-270461/7/XAB; AFIT/GEE/ENV--93S-15
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
540220* -- Environment
Terrestrial-- Chemicals Monitoring & Transport-- (1990-)
AQUIFERS
CONTAMINATION
DATA
DEVELOPED COUNTRIES
EVALUATED DATA
FLOW MODELS
FLUID FLOW
FLUIDS
GROUND WATER
HYDROGEN COMPOUNDS
INFORMATION
LAND POLLUTION
LEVELS
LIQUIDS
MATHEMATICAL MODELS
NORTH AMERICA
NUMERICAL DATA
NUMERICAL SOLUTION
OHIO
OXYGEN COMPOUNDS
POLLUTION
PONDS
PROBABILISTIC ESTIMATION
REMEDIAL ACTION
SAND
SOILS
SURFACE WATERS
TWO-DIMENSIONAL CALCULATIONS
UNDERGROUND
USA
WATER
WATER POLLUTION
WATER TABLES