• Matt Sweeney
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  • Weapons Engineering
  • Engineering Services
  • Infrastructure & Capital Projects
  • Physical Sciences
  • Chemical, Earth and Life Sciences
  • Advanced Computational Geosciences Initiative
  • Space Hazards Induced Near Earth by Large Dynamic Storms
  • Intelligence and Space Research
  • Nuclear Engineering and Nonproliferation
  • Laboratory Directed Research and Development
  • Operations (DDOPS)Plutonium Facilities Engineering
  • Detonator Production
  • Weapons Production
  • Analytics, Intelligence, and Technology
  • X Computational Physics
  • Electron Microscopy Lab
  • National Criticality Experiments Research Center
  • Radiation Protection
  • Plutonium InfrastructureFire Protection OfficeX Theoretical DesignWeapons Research Services
  • Safeguards and Security Technology Training Program
  • Meet Matt Sweeney


    Matthew Sweeney is a scientist on the subsurface flow and transport team in EES-16 with a background in geology and applied mathematics. His expertise is in using computational models to simulate flow and transport behavior in fractured porous media, which has applications including geothermal energy, nuclear waste storage, and predicting gas transport from underground explosions.

    He primarily works on developing and applying meshing and physics-based modeling capabilities within the dfnWorks software. He also studies volcanic hazards using statistical and physical models to build probabilistic assessments.


    • Hydrogeology
    • Subsurface flow and transport modeling
    • Geological/geophysical fluid dynamics
    • Geothermal energy
    • Volcanic hazards