• Temporal and spatial variations in the source (residual dense or light non-aqueous liquids), and its composition, and volatilization fluxes to the air phase updated continuously.
  Oil ( gas mass transfer simulated as a kinetic process
  
• Multiple wells, and spatial variation in extraction/injection rates simulated.
  
• Simulation of heterogeneous and/or anisotropic porous media.
  
• Easy to use Mesh Editor: create 3-D finite element mesh, define soil zones, and assign boundary conditions -- all within the Processor.
  
• Convection, dispersion, diffusion, first order biodegradation simulated.
  
• Computationally efficient matrix solution by conjugate gradient method with preconditioning
  

Input

• Mesh discretization data
  
• Initial conditions: water pressures (import/enter monitoring wells water level data).
  
• Initial conditions for transport
  
• Species’ gas concentration
  
• Soil hydraulic properties
  
• van Genuchten parameters, porosity
  
• Hydraulic conductivity
  
• Longitudinal and transverse dispersivities, and species’ diffusion, first order decay, solubility, oil ( gas mass transfer, and Henry coefficients.
  
• Boundary conditions for gas flow:
  
• Specified gas pressures, and/or flux/source/sink boundaries
  
• Boundary conditions for transport:
  
• Specified species’ concentrations, and/or flux/source/sink boundaries
  
• Spatial distribution of contaminants

User Interface

Graphical User Interface (SVE_3D Processor) for Windows
SVE_3D Processor is linked to Surfer for post-processing of the results

Output

Flow

• Spatial distribution (3D) of gas pressure, and gas and water saturations with time
  
• Pumping/injection rates/volumes vs. time
  
• Gas velocity distribution (3D)
  

Transport

• Species’ spatial (3D) concentrations, mass in the gas phase, and mass in the hydrocarbon source versus time.
  
• Species’ mass removal through boundaries, extraction wells, and biodegradation
  

Program Requirements

• 486 MHz or higher, math co-processor
  
• 64MB RAM, 50.0MB hard drive
  
• Windows 95 or higher for pre-/post-processing
  
• Surfer