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SVE-3D

Detailed Description

SVE-3D

SVE-3D





Key Features
  • 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



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